GSM BSS
GBSS14.0
Interoperability Between GSM and
WCDMA Feature Parameter
Description
Issue
04
Date
2013-04-12
HUAWEI TECHNOLOGIES CO., LTD.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Contents
Contents
1 Introduction....................................................................................................................................1
1.1 Scope..................................................................................................................................................................1
1.2 Intended Audience..............................................................................................................................................2
1.3 Change History...................................................................................................................................................2
2 Overview.........................................................................................................................................5
3 Iur-g Interface Between GSM and WCDMA...........................................................................6
4 Measurement of Neighboring WCDMA Cells........................................................................7
5 GSM/WCDMA Inter-RAT Cell Reselection............................................................................9
5.1 Cell Reselection from WCDMA to GSM.........................................................................................................10
5.1.1 Cell Reselection from WCDMA to GSM for MSs in Idle Mode............................................................10
5.1.2 WCDMA-to-GSM NACC.......................................................................................................................10
5.2 Cell Reselection from GSM to WCDMA.........................................................................................................11
5.2.1 Cell Reselection Based on Cell Ranking.................................................................................................11
5.2.2 Optimized GSM-to-WCDMA Cell Reselection in Packet Transfer Mode.............................................12
5.2.3 Fast WCDMA Reselection at 2G CS Call Release.................................................................................13
5.2.4 NC2 between GSM and WCDMA..........................................................................................................15
5.2.5 Forced NC2 Between GSM and WCDMA.............................................................................................20
5.3 BSC supporting Blind Search...........................................................................................................................21
6 GSM/WCDMA Inter-RAT CS Handover...............................................................................23
6.1 CS Handover from WCDMA to GSM.............................................................................................................24
6.2 CS Handover from GSM to WCDMA.............................................................................................................24
6.2.1 Overview.................................................................................................................................................24
6.3 Service-Based CS Handover from GSM to WCDMA.....................................................................................25
6.3.1 Overview.................................................................................................................................................25
6.3.2 Procedure.................................................................................................................................................25
6.4 Load-Based CS Handover from GSM to WCDMA.........................................................................................26
6.4.1 Overview.................................................................................................................................................26
6.4.2 Procedure.................................................................................................................................................26
7 GSM/WCDMA Inter-RAT PS Handover................................................................................28
7.1 WCDMA-to-GSM PS Handover......................................................................................................................29
7.1.1 Overview.................................................................................................................................................29
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Contents
7.1.2 Procedure.................................................................................................................................................29
7.2 GSM-to-WCDMA PS Handover......................................................................................................................31
7.2.1 Overview.................................................................................................................................................31
7.2.2 Procedure.................................................................................................................................................33
8 Related Features...........................................................................................................................36
9 Impact on the Network...............................................................................................................40
9.1 GSM/WCDMA Interoperability.......................................................................................................................40
9.1.1 Impact on System Capacity.....................................................................................................................40
9.1.2 Impact on Network Performance.............................................................................................................40
9.2 GSM/WCDMA Service Based Handover........................................................................................................40
9.2.1 Impact on System Capacity.....................................................................................................................40
9.2.2 Impact on Network Performance.............................................................................................................40
9.3 GSM/WCDMA Load Based Handover............................................................................................................40
9.3.1 Impact on System Capacity.....................................................................................................................41
9.3.2 Impact on Network Performance.............................................................................................................41
9.4 2G/3G Cell Reselection Based on MS State....................................................................................................41
9.4.1 Impact on System Capacity.....................................................................................................................41
9.4.2 Impact on Network Performance.............................................................................................................41
9.5 BSC supporting Blind Search...........................................................................................................................41
9.5.1 Impact on System Capacity.....................................................................................................................41
9.5.2 Impact on Network Performance.............................................................................................................41
9.6 Fast WCDMA Reselection at 2G CS Call Release..........................................................................................41
9.6.1 Impact on System Capacity.....................................................................................................................41
9.6.2 Impact on Network Performance.............................................................................................................42
10 Engineering Guidelines...........................................................................................................43
10.1 When to Use Interoperability Between GSM and WCDMA.........................................................................43
10.1.1 GSM/WCDMA Interoperability............................................................................................................43
10.1.2 GSM/WCDMA Service Based Handover.............................................................................................43
10.1.3 GSM/WCDMA Load Based Handover.................................................................................................43
10.1.4 2G/3G Cell Reselection Based on MS State.........................................................................................44
10.1.5 BSC supporting Blind Search................................................................................................................44
10.1.6 Fast WCDMA Reselection at 2G CS Call Release...............................................................................44
10.2 Information to Be Collected...........................................................................................................................44
10.2.1 GSM/WCDMA Interoperability............................................................................................................44
10.2.2 GSM/WCDMA Service Based Handover.............................................................................................44
10.2.3 GSM/WCDMA Load Based Handover.................................................................................................44
10.2.4 2G/3G Cell Reselection Based on MS State.........................................................................................44
10.2.5 BSC supporting Blind Search................................................................................................................45
10.2.6 Fast WCDMA Reselection at 2G CS Call Release...............................................................................45
10.3 Network Planning...........................................................................................................................................45
10.3.1 GSM/WCDMA Interoperability............................................................................................................45
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Contents
10.3.2 GSM/WCDMA Service Based Handover.............................................................................................45
10.3.3 GSM/WCDMA Load Based Handover.................................................................................................46
10.3.4 2G/3G Cell Reselection Based on MS State.........................................................................................46
10.3.5 BSC supporting Blind Search................................................................................................................46
10.3.6 Fast WCDMA Reselection at 2G CS Call Release...............................................................................47
10.4 Overall Deployment Procedure......................................................................................................................47
10.5 Deploying GSM/WCDMA Interoperability...................................................................................................47
10.6 Deploying 2G/3G Cell Reselection Based on MS State.................................................................................47
10.7 Deploying GSM/WCDMA Service Based Handover....................................................................................47
10.8 Deploying GSM/WCDMA Load Based Handover........................................................................................47
10.9 Deploying Fast WCDMA Reselection at 2G CS Call Release......................................................................48
10.10 Deploying BSC supporting Blind Search.....................................................................................................48
10.11 Performance Optimization............................................................................................................................48
10.11.1 GSM/WCDMA Interoperability and 2G/3G Cell Reselection Based on MS State............................48
10.11.2 GSM/WCDMA Service Based Handover and GSM/WCDMA Load Based Handover.....................48
10.11.3 Fast WCDMA Reselection at 2G CS Call Release.............................................................................49
10.11.4 BSC supporting Blind Search..............................................................................................................49
10.12 Troubleshooting............................................................................................................................................49
11 Parameters...................................................................................................................................50
12 Counters....................................................................................................................................134
13 Glossary.....................................................................................................................................152
14 Reference Documents.............................................................................................................153
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
1 Introduction
1
Introduction
1.1 Scope
This document describes the Interoperability Between GSM and WCDMA feature, including
its technical description, feature dependencies, network impact, and engineering guidelines. The
technical description includes measurement of neighboring WCDMA cells, GSM/WCDMA
inter-RAT cell reselection, and GSM/WCDMA inter-RAT CS/PS handover.
The Interoperability Between GSM and WCDMA feature involves the following features:
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GBFD-114301 GSM/WCDMA Interoperability
GBFD-114321 GSM/WCDMA Service Based Handover
GBFD-114322 GSM/WCDMA Load Based Handover
GBFD-114323 2G/3G Cell Reselection Based on MS State
GBFD-114325 Fast WCDMA Reselection at 2G CS Call Release
GBFD-511101 Load Based Handover Enhancement on Iur-g
GBFD-511102 NACC Procedure Optimization Based on Iur-g
GBFD-511103 GSM and WCDMA Load Balancing Based on Iur-g
GBFD-511104 GSM and WCDMA Traffic Steering Based on Iur-g
GBFD-119502 PS Handover
GBFD-116201 Network-Controlled Cell Reselection (NC2)
GBFD-511110 BSC supporting Blind Search
The following features are described in this document:
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GBFD-114301 GSM/WCDMA Interoperability
GBFD-114321 GSM/WCDMA Service Based Handover
GBFD-114322 GSM/WCDMA Load Based Handover
GBFD-114323 2G/3G Cell Reselection Based on MS State
GBFD-114325 Fast WCDMA Reselection at 2G CS Call Release
GBFD-119502 PS Handover
GBFD-116201 Network-Controlled Cell Reselection (NC2)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
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1 Introduction
GBFD-511110 BSC supporting Blind Search
The following features are described in the Common Radio Resource Management Feature
Parameter Description:
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GBFD-511101 Load Based Handover Enhancement on Iur-g
GBFD-511103 GSM and WCDMA Load Balancing Based on Iur-g
GBFD-511104 GSM and WCDMA Traffic Steering Based on Iur-g
The following features are described in the NACC Feature Parameter Description:
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GBFD-511102 NACC Procedure Optimization Based on Iur-g
1.2 Intended Audience
This document is intended for:
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Personnel who need to understand the Interoperability Between GSM and WCDMA feature
Personnel who work with Huawei GSM products
1.3 Change History
This section provides information about the changes in different document versions.
There are two types of changes, which are defined as follows:
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Feature change: refers to a change in the Interoperability Between GSM and WCDMA
feature of a specific product version.
Editorial change: refers to a change in wording or the addition of information that was not
described in the earlier version.
Document Issues
The document issues are as follows:
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04 (2013-04-12)
03 (2012-12-31)
02 (2012-08-30)
01 (2012-04-28)
Draft A (2012-02-15)
04 (2013-04-12)
This is the fourth release of GBSS14.0. Compared with issue 03 (2012-12-31) of GBSS14.0,
issue 04 (2013-04-12) of GBSS14.0 incorporates the changes described in the following table
Issue 04 (2013-04-12)
Change
Type
Change Description
Parameter
Change
Feature
change
Added section 5.2.2 Optimized GSM-to-WCDMA Cell
Reselection in Packet Transfer Mode
None
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
1 Introduction
Change
Type
Change Description
Parameter
Change
Editorial
change
Added descriptions about the mutually exclusive features
and impacted features of GBFD-511110 BSC supporting
Blind Search. For details, see chapter 8 Related Features.
None
03 (2012-12-31)
This is the third release of GBSS14.0. Compared with issue 02 (2012-08-30) of GBSS14.0, issue
03(2012-12-31) of GBSS14.0 incorporates the changes described in the following table
Change
Type
Change Description
Parameter
Change
Feature
change
Added the following chapter:
Added the
following
parameter:
Chapter 5.2.5 Forced NC2 Between GSM and WCDMA
GSMTOFDD
FORCENC2
Editorial
change
None
None
02 (2012-08-30)
This is the second release of GBSS14.0.
Compared with issue 01 (2012-04-28) of GBSS14.0, issue 02 (2012-08-30) of GBSS14.0
incorporates the changes described in the following table.
Change Type
Change Description
Parameter Change
Feature change
None
None
Editorial change
Deleted the descriptions of
cell reselection based on cell
priority and added the
relevant descriptions to the
Interoperability Between
GSM and LTE Feature
Parameter Description.
None
01 (2012-04-28)
This is the first release of GBSS14.0.
Compared with issue draft A (2012-02-15) of GBSS14.0, issue 01 (2012-04-28) of GBSS14.0
has no change.
Issue 04 (2013-04-12)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
1 Introduction
Draft A (2012-02-15)
This is a draft.
Compared with issue 01 (2011-03-31) of GBSS13.0, draft A (2012-02-15) of GBSS14.0
incorporates the changes described in the following table.
Change Type
Change Description
Parameter Change
Feature change
Added the GBFD-511110
BSC supporting Blind
Search feature.
Added the following parameter:
Optimized the
GBFD-114325 Fast
WCDMA Reselection at
2G CS Call Release
Editorial change
Added the following
chapters:
INPUT3GARFCNEN
INTERRATCELLRESELOPTEN
None
l Chapter 8 Related
Features
l Chapter 9 Impact on
the Network
l Chapter 10
Engineering
Guidelines
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
2 Overview
2
Overview
WCDMA and GSM will coexist for a long time. Therefore, Huawei GSM BSS provides GSM/
WCDMA interoperability, which allows inter-RAT handovers and inter-RAT cell reselections
between GSM and WCDMA.
GSM/WCDMA interoperability supports smooth evolution from GSM to WCDMA, which
helps reduce operators' capital expenditure (CAPEX). This feature provides operators with both
WCDMA and GSM networks complete support for a seamless coverage from GSM to WCDMA.
For example, with the cell reselection or handover function, operators can keep providing
services for a dual-mode MS that moves away from the WCDMA coverage, thereby improving
user experience.
In areas covered by both GSM and WCDMA networks, Interoperability between GSM and
WCDMA balances traffic loads between two networks. For example, when the traffic load in a
GSM cell is too high, Interoperability between GSM and WCDMA can hand over some calls in
the GSM cell to a WCDMA cell.
Interoperability between GSM and WCDMA also allows operators to set different service access
policies in areas covered by both GSM and WCDMA networks. For example, GSM is
preferentially selected for handling CS services and WCDMA for PS services.
NOTE
All MSs mentioned in this document are multi-mode MSs that support both GSM and WCDMA.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
3
3 Iur-g Interface Between GSM and WCDMA
Iur-g Interface Between GSM and WCDMA
Load information exchange is a prerequisite for the Interoperability Between GSM and
WCDMA feature. Load information exchange consists of the following types:
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Load information exchange through the core network (CN): Load information, which is
carried in the information elements (IEs) in the signaling for handovers, is exchanged
between the GSM BSC over the A interface and the WCDMA RNC over the Iu interface.
In this situation, load information exchanges irregularly. Therefore, unnecessary handover
attempts may occur.
Load information exchange through the Iur-g interface: Load information is exchanged
between the GSM BSC and the WCDMA RNC through the Iur-g interface instead of the
CN. Through the Iur-g interface, the GSM BSC and WCDMA RNC can exchange load
information with each other by performing information exchange and common
measurement. This simplifies the GSM/WCDMA interoperability procedure, shortens the
handover delay, and increases the handover success rate.
Figure 3-1 shows the position of the Iur-g interface on a network.
Figure 3-1 Position of the Iur-g interface on a network
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
4
4 Measurement of Neighboring WCDMA Cells
Measurement of Neighboring WCDMA
Cells
To support cell reselection and handover from GSM to WCDMA, the BSS sends the neighboring
WCDMA cell list and parameters for cell reselection and handover through system information
(SI) to MSs. MSs then measure neighboring WCDMA cells based on the received information.
SI consists of SI2quater and Measurement Information. SI2quater is sent on the BCCH, and
Measurement Information is sent on the SACCH. The Send2QuterFlag parameter specifies
whether to send SI2quater.
MSs in GSM cells measure both the signal level of neighboring GSM cells and the signal quality
of neighboring WCDMA cells. The BSS controls the neighboring cell measurement to avoid
unnecessary measurements and reduce the power consumption of MSs. MSs in idle mode or
packet transfer mode can perform inter-RAT cell reselection. MSs in dedicated mode can
perform inter-RAT handover. Operators can set different measurement parameters for MSs
operating in different modes.
When an MS is in idle mode, it determines whether to measure information about neighboring
WCDMA cells based on the value of QI and the receive level of the serving cell. The conditions
for triggering measurement depend on the value of QI.
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If QI is set to a value within the range of 0 to 6, the measurement is triggered when the
receive level of the serving cell is lower than QI.
If QI is set to a value within the range of 8 to 14, the measurement is triggered when the
receive level of the serving cell is higher than QI.
If QI is set to 7, MSs always measure neighboring WCDMA cell information.
If QI is set to 15, MSs do not measure neighboring WCDMA cell information.
Normally, MSs in packet transfer mode determine whether to measure the information about
neighboring WCDMA cells according to the value of QI and the receive level of the serving
cell. If any of the following conditions are met, MSs in packet transfer mode determine whether
to measure neighboring WCDMA cell information based on the value of QP and the receive
level of the serving cell.
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The GSM cell has a PBCCH, and QP is broadcast on the PBCCH.
The serving GSM cell does not have a PBCCH but QP is broadcast on the BCCH. In
addition, MSs have received the Packet Cell Change Order message or the Packet
Measurement Order message that carries the GPRS cell reselection parameters of one or
more WCDMA cells.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
4 Measurement of Neighboring WCDMA Cells
The conditions for triggering measurement depend on the value of QP.
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If QP is set to a value within the range of 0 to 6, the measurement is triggered when the
receive level of the serving cell is lower than the value of QP.
If QP is set to a value within the range of 8 to 14, the measurement is triggered when the
receive level of the serving cell is higher than the value of QP.
If QP is set to 7, MSs always measure neighboring WCDMA cell information.
If QP is set to 15, MSs do not measure neighboring WCDMA cell information.
When an MS is in dedicated mode, it determines whether to measure the information about
neighboring WCDMA cells based on QSEARCHC and the receive level of the serving cell. The
conditions for triggering the measurement depend on the value of QSEARCHC.
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If QSEARCHC is set to a value within the range of 0 to 6, the measurement is triggered
when the receive level of the serving cell is lower than QSEARCHC.
If QSEARCHC is set to a value within the range of 8 to 14, the measurement is triggered
when the receive level of the serving cell is higher than QSEARCHC.
If QSEARCHC is set to 7, MSs always measure neighboring WCDMA cell information.
If QSEARCHC is set to 15, MSs do not measure neighboring WCDMA cell information.
QSEARCHC is contained in the Measurement Information message. After entering dedicated
mode, MSs attempt to obtain QSEARCHC from the Measurement Information message
transmitted on the SACCH. Before QSEARCHC is obtained, MSs use the value of QCI that is
transmitted on the BCCH as the value of QSEARCHC.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
5
5 GSM/WCDMA Inter-RAT Cell Reselection
GSM/WCDMA Inter-RAT Cell Reselection
GSM/WCDMA inter-RAT cell reselection includes WCDMA-to-GSM cell reselection and
GSM-to-WCDMA cell reselection. Cell reselection is mainly performed by MSs.
For MSs in idle mode, GSM/WCDMA interoperability involves only GSM/WCDMA inter-RAT
cell reselection. A dual-mode or multi-mode MS camping on a GSM cell measures the
information about neighboring WCDMA cells, and then decides whether to reselect the
WCDMA cell based on cell reselection parameters.
For MSs in packet transfer mode, cell reselection modes include network-controlled mode 0
(NC0), network-controlled mode 1 (NC1), and network-controlled mode 2 (NC2). MSs can
reselect a WCDMA cell for PS services. NC0 cell reselection and NC1 cell reselection are
performed by MSs without the intervention of the BSS. In NC2 cell reselection, the BSS sends
signaling to steer MSs towards desired camping cells.
The INTERRATCELLRESELEN parameter specifies whether to enable GSM/WCDMA interRAT cell reselection. When INTERRATCELLRESELEN is set to NO(No), the BSS does not
send the neighboring WCDMA cell list and the parameters related to GSM/WCDMA inter-RAT
cell reselection. In this case, MSs in a GSM cell cannot reselect a WCDMA cell.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
5.1 Cell Reselection from WCDMA to GSM
Cell reselection from WCDMA to GSM involves the cell reselection for MSs in idle and packet
transfer modes. In addition, cell reselection for MSs in packet transfer mode is WCDMA-toGSM NACC or enhanced WCDMA-to-GSM NACC.
5.1.1 Cell Reselection from WCDMA to GSM for MSs in Idle Mode
When an MS moves to the GSM coverage area and reselects a GSM cell, the MS initiates a
location update to the GSM network if the location area is changed. The GSM network handles
the location update regardless of whether the MS is from a WCDMA cell.
In the BSS, the cell reselection procedure from WCDMA to GSM is the same as that between
GSM cells. Therefore, this procedure is not described in this document.
5.1.2 WCDMA-to-GSM NACC
The WCDMA-to-GSM NACC procedure is specified in 3GPP specifications. The GSM-toWCDMA NACC procedure, however, is not.
Figure 5-1 shows the WCDMA-to-GSM NACC procedure.
Figure 5-1 WCDMA-to-GSM NACC procedure
After the RNC determines that an MS should reselect a GSM cell, it sends a Cell Change Order
From UTRAN message to the MS. If the WCDMA-to-GSM NACC procedure is applied, the
Cell Change Order From UTRAN message carries the IE "Geran System Information" that
contains the SI1, SI3, and SI13 of the target GSM cell.
Before performing WCDMA-to-GSM NACC, the RNC obtains the SI of the target GSM cell
through the RAN Information Management (RIM) procedure. The RIM procedure consists of
SI request and SI update procedures.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
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5 GSM/WCDMA Inter-RAT Cell Reselection
SI request procedure: This procedure is initiated by the source RNC, requesting the SI about
the target GSM cell.
SI update procedure: This procedure is initiated by the target BSC, instructing the source
RNC to update the SI about the target GSM cell.
After receiving the Cell Change Order From UTRAN message, the MS leaves the WCDMA cell
and reselects the GSM cell. After the cell reselection is complete, the MS uses the SI about the
target GSM cell in the initial packet access procedure. In this manner, the period of packet service
disruption is shortened.
During the WCDMA-to-GSM NACC procedure, the RIM procedure must be supported on the
Gb interface. To support the RIM procedure, the BSC must be configured with the RIMSUP
parameter for the NSE to indicate whether the RIM procedure is supported.
5.2 Cell Reselection from GSM to WCDMA
Cell reselection from GSM to WCDMA includes cell reselection for MSs in idle and packet
transfer modes. Cell reselection for MSs in idle mode refers to cell reselection based on cell
ranking. Fast 3G Reselection at 2G CS Call Release and NC2 between GSM and WCDMA are
optimized cell reselection solutions, which can accelerate cell reselection.
5.2.1 Cell Reselection Based on Cell Ranking
MSs in a GSM cell obtain the neighboring WCDMA cell list and cell reselection parameters
from SI2quater, and then measure neighboring WCDMA cells according to the list and
parameters. The mechanism for NC0 or NC1 cell reselection from GSM to WCDMA for MSs
in idle mode is the same as that for MSs in packet transfer mode. In the GSM network, cell
reselection from GSM to WCDMA is controlled by QI, FDDQOFF, and FDDQMIN.
QI is the start level for measuring neighboring WCDMA cells. In the NC0 or NC1 cell reselection
for MSs in idle or packet transfer mode, MSs start to search for neighboring WCDMA cells
when the level of the serving cell is lower than the value of QI (when QI is set to a value within
the range of 0 to 6) or higher than the value of QI (when QI is set to a value within the range of
8 to 14). When QI is set to 7, MSs always search for neighboring WCDMA cells.
Ec/No and Received Signal Code Power (RSCP) of the Common Pilot Channel (CPICH) are
commonly used during neighboring WCDMA cell measurement. An MS starts GSM-toWCDMA cell reselections if the following conditions are met and last for more than five seconds:
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CPICH RSCP > RLA_C + FDDQOFF
CPICH Ec/No ≥ FDDQMIN - FDDQMINOFFSET
CPICH RSCP ≥ FDD_RSCP_threshold
NOTE
In WCDMA, Ec/No is the ratio of energy per modulating bit to the noise spectral density. It is equivalent
to C/I in GSM.
Where,
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RLA_C is the average receive level. In a GSM-to-WCDMA cell reselection, the RSCP of
the neighboring WCDMA cell must meet the following requirements:
– RSCP > Average receive level of the serving cell + FDDQOFF
– RSCP > Receive level of each neighboring GSM cell + FDDQOFF
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Parameter Description
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FDDQOFF is the receive level difference between the candidate WCDMA cell and the
serving GSM cell. This parameter is a key factor for controlling the GSM-to-WCDMA cell
reselection. The greater the value of FDDQOFF is, the more difficult it is for the GSMto-WCDMA cell reselection condition to be met, and more MSs will camp on the GSM
cell.
FDDQMIN is the minimum Ec/No threshold for GSM-to-WCDMA cell reselection. The
greater the value of FDDQMIN is, the more difficult it is to meet the cell reselection
condition. FDDQMINOFFSET is offset of the minimum Ec/No threshold for GSM-toWCDMA cell reselection. An MS determines the minimum receive level of a candidate
WCDMA cell for cell reselection based on FDDQMIN and FDDQMINOFFSET. That
is, FDDQMIN and FDDQMINOFFSETdo not determine the cell reselection from GSM
to WCDMA directly but guarantee the signal quality of the candidate WCDMA cell.
FDD_RSCP_threshold is calculated as follows:
– If FDD_RSCPmin is broadcast in the serving cell, then FDD_RSCP_threshold =
FDDRSCPMIN - min((P_MAX - 21 dBm), 3 dB).
– If FDD_RSCPmin is not broadcast in the serving cell and Qrxlevmin and
Pcompensation can be obtained in the serving cell, then FDD_RSCP_threshold =
Qrxlevmin + Pcompensation + 10 dB.
– If FDD_RSCPmin is not broadcast in the serving cell and Qrxlevmin and
Pcompensation cannot be obtained in the serving cell, then FDD_RSCP_threshold =
-102dBm (the default value of FDD_RSCPmin).
Where,
– P_MAX is the maximum RF output power of an MS in a WCDMA cell.
– Qrxlevmin is the minimum required RX level in a WCDMA cell.
– Pcompensation is max(UE_TXPWR_MAX_RACH – P_MAX, 0).
– UE_TXPWR_MAX_RACH is the maximum TX power level an MS may use when
accessing a WCDMA cell on RACH.
– FDDRSCPMIN is used to calculate the FDD_RSCP_threshold of the target cell for a
GSM-to-WCDMA cell reselection.
If multiple WCDMA cells meet the cell reselection conditions, the MS selects the cell with the
highest RSCP as the target cell.
The GSM-to-WCDMA cell reselection cannot be triggered within five seconds after the
WCDMA-to-GSM cell reselection. In case of a cell reselection occurring within the previous
15 seconds, FDDQOFF is increased by 5 dB.
If both the conditions for the GSM-to-WCDMA cell reselection and those for the GSM-to-GSM
cell reselection are met, the MS selects a WCDMA cell as the target cell.
5.2.2 Optimized GSM-to-WCDMA Cell Reselection in Packet
Transfer Mode
This section describes the GBFD-114323 2G/3G Cell Reselection Based on MS State feature.
This feature is designed to optimize cell reselection from GSM to WCDMA. It enables dualmode MSs in idle mode and in packet transfer mode to adopt different reselection policies to
access the 3G network as required.
An MS in idle mode searches for neighboring FDD cells based on the value of the Qsearch_I
information element (IE) contained in system information (SI). The value of Qsearch_I is
specified by the QI parameter.
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
An MS in packet transfer mode searches for neighboring FDD cells based on the value of the
Qsearch_P IE contained in the PACKET MEASUREMENT ORDER message. If an MS does
not obtain the Qsearch_P IE, the MS searches for neighboring FDD cells based on the value of
the Qsearch_I IE. The value of Qsearch_P is specified by the QP parameter. When QP is set to
15, MSs in packet transfer mode are not allowed to reselect to an neighboring FDD cell.
5.2.3 Fast WCDMA Reselection at 2G CS Call Release
This section describes the GBFD-114325 Fast WCDMA Reselection at 2G CS Call Release
feature .
Overview
When an MS terminates a call in the GSM network, it camps on the cell in which the call is
released and then starts neighboring cell measurement. When a neighboring WCDMA cell meets
the requirements for cell reselection, the MS reselects the WCDMA cell. The WCDMA cell
reselection is initiated after the MS receives the SI and performs the related calculation.
When the feature Fast WCDMA Reselection at 2G CS Call Release is activated, the BSS selects
the best neighboring WCDMA cell based on the measurement information after the MS in a
GSM cell terminates a CS call. Then, the BSS sends the MS the cell information through the
Channel Release message, instructing the MS to camp on that WCDMA cell. With this feature,
an MS can camp on a WCDMA cell without performing cell reselection decisions, accelerating
cell reselection. This feature allows the MS to camp on the WCDMA cell for a longer period.
In addition, the number of location area updates is reduced, and the paging success rate is
increased, increasing the revenue of operators in the WCDMA network.
NOTE
The WCDMA network in this document refers to the UTRAN FDD. FDD stands for frequency division
duplex (FDD).
Procedure
After an MS in a GSM cell releases a CS call, the BSC sends the MS a Channel Release message
that carries the IE "Cell selection indicator after release of all TCH and SDCCH". This IE carries
the neighboring WCDMA cell information, facilitating the MS to reselect a WCDMA cell. This
feature needs the support of both the network and the MS.
Figure 5-2 shows the cell reselection procedure for an MS-terminated call.
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
Figure 5-2 Procedure for fast WCDMA reselection at 2G CS call release
1. After receiving a Release Complete message from the MS, the MSC sends a Clear Command
message to the BSC, instructing the BSC to release the occupied resources on the A and Um
interfaces.
2. The BSC sends a Channel Release message to the MS, instructing the MS to release the TCH
or SDCCH on the Um interface. The Channel Release message may carry the IE "Cell selection
indicator after release of all TCH and SDCCH", which contains the information about the target
neighboring WCDMA cell.
The MS in the serving GSM cell measures neighboring cells.
If...
Then...
The information about neighboring
WCDMA cells is carried in a measurement
report (MR)
The BSC carries the information (including
FDD-ARFCN and FDD_CELL_INFORMATION) about the best neighboring WCDMA
cell in the Channel Release message,
instructing the MS to reselect that
neighboring WCDMA cell.
No neighboring WCDMA cell information is
carried in an MR or the value of
CELLSELECTAFTERCALLREL is NO
(No)
The BSC does not carry the IE "Cell selection
indicator after release of all TCH and
SDCCH" in the Channel Release message.
3. After receiving the Channel Release message, the MS releases the main signaling link. Then,
the MS sends a DISC frame to the BTS, instructing the BTS to release the TCH or SDCCH.
4. After receiving an Unnumbered Acknowledgement message, the MS switches to idle mode
and initiates cell reselection based on the IE "Cell selection indicator after release of all TCH
and SDCCH".
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
If...
Then...
The Channel Release message contains the IE
"Cell selection indicator after release of all
TCH and SDCCH"
The MS attempts to camp on the cell indicated
in the Channel Release message.
The Channel Release message does not
contain the IE "Cell selection indicator after
release of all TCH and SDCCH"
The MS attempts to camp on the cell where
the TCH or SDCCH is already released.
5. If step 4 fails, the MS performs a normal cell reselection procedure to camp on any appropriate
cells.
5.2.4 NC2 between GSM and WCDMA
This section describes the GBFD-116201 NC2 between GSM and WCDMA feature .
NC2 cell reselection can be performed for inter-RAT cell reselection only when an MS is in
packet transfer mode.
NC2 cell reselection between GSM and WCDMA refers to the network-controlled cell
reselection from GSM to WCDMA triggered by a BSC.
NC2 cell reselection is activated after the NCO parameter is set to NC2(NC2).
In NC2 cell reselection mode, an MS generally determines whether to measure neighboring
WCDMA cells based on the value of QI and the receive level of the serving cell. If any of the
following conditions are met, the MS determines whether to measure neighboring WCDMA
cells based on the value of QP and the receive level of the serving cell:
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The serving GSM cell has a PBCCH, and QP is broadcast on the PBCCH.
The serving GSM cell does not have a PBCCH but QP is broadcast on the BCCH. In
addition, MSs have received the Packet Cell Change Order message or the Packet
Measurement Order message that carries the GPRS cell reselection parameters of one or
more WCDMA cells.
In NC2 cell reselection mode, an MS performs inter-RAT neighboring WCDMA cell
measurements based on QP, FDDFREQCNUM, FDDCELLOFF, and FDDCELLTHRED
and sends MRs.
l
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QP is the threshold for an MS in PS mode to search for WCDMA cells. If the level of the
serving GSM cell is lower than the value of QP (when QP is within the range of 0 to 6) or
higher than the value of QP (when QP is within the range of 8 to 14), the MS starts to search
for WCDMA cells.
FDDFREQCNUM is the number of WCDMA cells that should be contained in the best
cell list, which is carried in the MR from an MS.
FDDCELLOFF is the receive level offset for WCDMA cells. During the ranking of
measured neighboring cells, the value of this parameter is added to the receive level of
measured WCDMA cells.
FDDCELLTHRED is the threshold for reporting a WCDMA cell. The MS reports only
the cells whose RSCP is greater than this threshold.
Figure 5-3 shows the procedure for NC2 cell reselection between GSM and WCDMA.
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
Figure 5-3 Procedure for NC2 cell reselection between GSM and WCDMA
1.
An MS in the GPRS Mobility Management (GMM) Ready state periodically sends Packet
Measurement Report messages or Packet Enhanced Measurement Report messages to the
BSC. These MRs contain the RSCP of neighboring WCDMA cells.
2.
After receiving a packet MR, the BSC processes the measurement results. Then, the BSC
determines whether to perform a cell reselection.
3.
If the BSC determines to initiate a cell reselection, it sends the Packet Cell Change Order
message to the MS to instruct the MS to reselect the specified target WCDMA cell. Target
cell reselection is based on the NC2 cell reselection algorithm.
4.
If a cell reselection fails, the MS sends the Packet Cell Change Failure message to the BSC.
After receiving this message, the BSC subtracts PENALTYRXLEV from the receive level
of the target cell. If the receive level of the target cell is less than PENALTYRXLEV, the
BSC sets the receive level of the target cell to 0.
The NC2 cell reselection algorithms include the service-based NC2 cell reselection
algorithm, quality-based NC2 cell reselection algorithm, and load-based NC2 cell
reselection algorithm.
Service-Based NC2 Cell Reselection Algorithm
The service-based NC2 cell reselection is activated when TrafficReselAllow is set to PERMIT
(Permit).
The BSC may find the IE "Service UTRAN CCO" in multiple DL-UNITDATA PDUs,
CREATE-BSS-PFC PDUs, or PS-HANDOVER-REQUEST PDUs sent from the SGSN. The
BSS considers that the last received IE "Service UTRAN CCO" is of the highest priority. The
IE "Service UTRAN CCO" carries Service UTRAN CCO Value part, which indicates the most
suitable RAT for the current service.
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
Table 5-1 lists the values of Service UTRAN CCO Value part and their meanings.
Table 5-1 Values of Service UTRAN CCO Value part and their meanings
Coding Bits
Meaning
000
Network initiated cell change order to
UTRAN or PS handover to UTRAN
procedure should be performed
001
Network initiated cell change order to
UTRAN or PS handover to UTRAN
procedure should not be performed
010
Network initiated cell change order to
UTRAN or PS handover to UTRAN
procedure should not be performed
111
If received, should be interpreted as no
information available (bits 4-5 valid)
Other values
If received, should be interpreted as no
information available
If the value of Service UTRAN CCO Value part is 000, the MS triggers a service-based cell
reselection and selects the neighboring WCDMA cell with the highest receive level.
If no neighboring WCDMA cell is available, the MS proceeds to perform a quality-based, loadbased, or coverage-based NC2 cell reselection.
Quality-Based NC2 Cell Reselection Algorithm
The quality-based NC2 cell reselection is activated when URGENTRESELALLOW is set to
PERMIT(Permit).
When the conditions for triggering a service-based NC2 cell reselection are not met, the BSC
determines whether to initiate a cell reselection based on the receive quality of the radio link on
the Um interface. The MRs or Bit Error Rate (BER) indicates the receive quality on the radio
link and the number of times bad radio link quality occurs.
In a receive quality measurement period, if the MS receive quality deterioration ratio is greater
than the CELLRXQUALWORSENRATIOTHRSH parameter, a quality-based NC2 cell
reselection is initiated.
l
MS receive quality deterioration ratio = Times of bad radio link quality/Number of radio
link quality MRs
In quality-based NC2 cell reselection, the cell with the highest priority is selected as the target
cell from candidate GSM cells. The priority of a cell is determined by its receive level and
characteristics information such as cell type, and support for EDGE. In quality-based NC2 cell
reselection, the candidate WCDMA cell with the highest receive level is selected as the target
cell. If NC2LoadResel is set to Support(Support), the cell characteristics information also
includes the load of the candidate GSM cells under the same BSC.
In quality-based NC2 cell reselection, a candidate cell must meet the following conditions:
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Parameter Description
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Receive level of the neighboring GSM candidate cell > Max(Receive level of the serving
cell, MINACCRXLEV) + RESELHYST.
Measured RSCP of the neighboring WCDMA cell > FDDRSCPQUALTHRSH.
When NC2LoadResel is set to Support(Support), the neighboring GSM candidate cells
under the same BSC are not congested.
When Service UTRAN CCO Value part is set to 010 or 001, none of the neighboring
WCDMA cells is selected as the target cell.
Then, the highest level candidate cell within the highest priority cells is selected as the target
cell. If a neighboring WCDMA cell is selected, an NC2 cell reselection from GSM to WCDMA
is triggered.
Load-Based NC2 Cell Reselection Algorithm
The load-based NC2 cell reselection algorithm is activated when LOADRESELALLOW is set
to PERMIT(Permit).
When neither the conditions for initiating a service-based NC2 cell reselection nor the conditions
for initiating a quality-based NC2 cell reselection are met, a load-based NC2 cell reselection is
initiated to balance the load among the cells in the network. In load-based NC2 cell reselection,
some MSs in cells with heavy load are reselected to cells with light load. In addition, the MSs
in neighboring cells should not be reselected to these heavily-loaded cells.
Figure 5-4 shows a load-based NC2 cell reselection.
Figure 5-4 Load-based NC2 cell reselection
When the serving cell is overloaded and the receive level in this cell is lower than
LOADRESELMAXRXLEV, load-based NC2 cell reselection is triggered.
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If the channel multiplexing rate of a cell is higher than LOADRESELSTARTTHRSH, the
cell load is heavy. Then, the load-based NC2 cell reselection should be enabled.
In a load-based NC2 cell reselection, only the MS whose signal level is lower than
LOADRESELMAXRXLEV can be reselected to a neighboring cell.
In load-based NC2 cell reselection, the cell with the highest priority is selected as the target cell
from the candidate GSM cells. The priority of a cell is determined by its receive level and
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
characteristics information such as cell type, and support for EDGE. Alternatively, the candidate
WCDMA cell with the highest receive level is selected as the target cell. If NC2LoadResel is
set to Support(Support), the characteristics information about a cell also includes the load of
GSM candidate cells under the same BSC.
In load-based NC2 cell reselection, a candidate cell must meet the following conditions:
l
l
l
l
Receive level of the neighboring GSM cell > Max(Receive level of the serving cell,
MINACCRXLEV) + RESELHYST.
Measured RSCP of the neighboring WCDMA cell > FDDRSCPQUALTHRSH.
When NC2LoadResel is set to Support(Support), the neighboring GSM candidate cells
under the same BSC are not congested.
When Service UTRAN CCO Value part is set to 010 or 001, none of the neighboring
WCDMA cells can be selected as the candidate cell.
Then, the highest level candidate cell within the highest priority cells is selected as the target
cell. If a neighboring WCDMA cell is selected, an NC2 cell reselection from GSM to WCDMA
is triggered.
Coverage-Based NC2 Cell Reselection Algorithm
Coverage-based NC2 cell reselection is activated when NORMALRESELALLOW is set to
PERMIT(Permit).
When none of the conditions for initiating a service-based, quality-based, and load-based NC2
cell reselection are met and the P/N criterion for initiating a coverage-based NC2 cell reselection
is met, a coverage-based NC2 cell reselection is initiated.
The P/N criterion for initiating a coverage-based NC2 cell reselection is as follows: In the period
specified by RESELWATCHPERIOD, the number of times that the receive level of the serving
cell is lower than the value of MINACCRXLEV reaches the value of
RESELWORSENLEVTHRSH.
In coverage-based NC2 cell reselection, the cell with the highest priority is selected as the target
cell from the candidate GSM cells. The priority of a cell is determined by its receive level and
characteristics information such as cell type, and support for EDGE. Or, the candidate WCDMA
cell with the highest receive level is selected as the target cell. If NC2LoadResel is set to Support
(Support), the characteristics information about a cell also includes the load of the GSM
candidate cells under the same BSC.
In coverage-based NC2 cell reselection, a candidate cell must meet the following conditions:
l
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l
l
Receive level of the neighboring GSM candidate cell > Max(Receive level of the serving
cell, MINACCRXLEV) + RESELHYST.
Measured RSCP of the neighboring WCDMA candidate cell >
FDDRSCPQUALTHRSH.
When NC2LoadResel is set to Support(Support), the neighboring GSM candidate cell
under the same BSC are not congested.
When Service UTRAN CCO Value part is set to 010 or 001, none of the neighboring
WCDMA cells can be selected as the candidate cell.
Then, the highest level candidate cell within the highest priority cells is selected as the target
cell. If a neighboring WCDMA cell is selected, an NC2 cell reselection from GSM to WCDMA
is triggered.
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
5.2.5 Forced NC2 Between GSM and WCDMA
Overview
To enable the forced network-controlled GSM-to-WCDMA cell reselection function, set
GSMTOFDDFORCENC2 to SUPPORT(Support) when NCO is set to NC0(NC0) or NC1
(NC1). The BSC sends a Packet Measurement Order message to MSs in packet transfer mode.
This messages contains NC2 and inter-RAT measurement parameters. Based on these
parameters, the MSs measure neighboring WCDMA cells and periodically send packet MRs to
the BSC. To support this function, the BSC must be configured with a database of IMEI segments
for MSs that do not support the forced network-controlled GSM-to-WCDMA cell reselection
function. The database consists of one or more IMEI segments. ImeiMin and ImeiMax specify
start IMEI and end IMEI in an IMEI segment, respectively.
Forced NC2 Procedure
Figure 5-5 shows the forced network-controlled GSM/WCDMA cell reselection procedure.
Figure 5-5 Forced network-controlled cell reselection procedure
1.
Setting the NC2 mode
The BSC is configured with a database of IMEI segments for MSs that do not support the
forced network-controlled GSM-to-WCDMA cell reselection function.
Once the forced network-controlled GSM-to-WCDMA cell reselection function is enabled,
the BSC sends an IMEI query message to MSs in packet transfer mode to check whether
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Parameter Description
5 GSM/WCDMA Inter-RAT Cell Reselection
these MSs support this function. If these MSs support this function, the BSC sends a Packet
Measurement Order message to these MSs. The Packet Measurement Order message
contains NC2 and the inter-RAT measurement control parameters,
includingPsBestFddCellNum, PsFddCellRptOff, PsFddCellRptThd,
PsFddRptThr2Ecno, and PsFddRptThr2Rscp.
2.
NC2 decision
Using the MRs sent by the MS, the BSC makes the GSM/WCDMA NC2 decision and
selects a target neighboring WCDMA cell that meets the following condition:
Measured RSCP of the neighboring WCDMA cell > FDDRSCPQUALTHRSH
The BSC checks the PS service duration for the MS. If the service duration is greater than
the value of FddReselTimeThd and the MS is still in packet transfer mode, the BSC
instructs the MS to reselect a WCDMA cell.
5.3 BSC supporting Blind Search
This section describes the GBFD-511110 BSC supporting Blind Search feature.
Generally, WCDMA/TD-SCDMA frequencies and scrambling codes need to be configured for
GSM-to- WCDMA/TD-SCDMA cell reselection. Based on the configured information, MSs
search for appropriate neighboring WCDMA/TD-SCDMA cells to camp on.
This feature allows the BSC to configure only WCDMA/TD-SCDMA frequencies for GSM-to
WCDMA/TD-SCDMA cell reselection. Based on configured WCDMA/TD-SCDMA
frequencies, MSs can automatically search for appropriate neighboring WCDMA/TD-SCDMA
cells to camp on. Currently, few frequencies are used by a WCDMA/TD-SCDMA network.
Therefore, using this feature can greatly simplify configurations for GSM-to- WCDMA/TDSCDMA cell reselection.
The procedure for implementing this feature is as follows:
1.
The BSC selects frequencies. If frequencies have been configured for a cell, use the
frequencies configured for the cell. If frequencies have not been configured for the cell,
use the frequencies configured for the BSC.
2.
The BSC checks whether the cell is configured with a neighboring WCDMA/TD-SCDMA
cell.
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If the neighboring WCDMA/TD-SCDMA cell has been configured, the BSC sends an MS
the SI2Quater carrying frequencies and scrambling codes used by the neighboring
WCDMA/TD-SCDMA cell.
If the neighboring WCDMA/TD-SCDMA cell has not been configured, the BSC sends the
MS the SI2Quater carrying frequencies configured by running the BSC6900 MML
command SET GCELL3GARFCN or SET G3GARFCN.
NOTE
The WCDMA/TD-SCDMA frequencies configured by running the BSC6900 MML command SET
GCELL3GARFCN are preferentially used. The detailed explanation is as follows:
l If WCDMA/TD-SCDMA frequencies have been configured by running the BSC6900 MML command
SET GCELL3GARFCN, the BSC sends the information about the configured frequencies to the MS
regardless of whether WCDMA/TD-SCDMA frequencies are configured by running the BSC6900
MML command SET G3GARFCN.
l If WCDMA/TD-SCDMA frequencies have not been configured by running the BSC6900 MML
command SET GCELL3GARFCN, the BSC sends the WCDMA/TD-SCDMA frequencies
configured by running the BSC6900 MML command SET G3GARFCN to the MS.
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Parameter Description
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Parameter Description
6
6 GSM/WCDMA Inter-RAT CS Handover
GSM/WCDMA Inter-RAT CS Handover
GSM/WCDMA interoperability for MSs in dedicated mode involves GSM-to-WCDMA
handover and WCDMA-to-GSM handover. Handovers are implemented by MSs and the BSS.
GSM/WCDMA inter-RAT handovers include emergency handovers, better cell handovers,
load-based inter-RAT handovers, and service-based inter-RAT handovers.
Emergency handover is triggered when an ongoing call initiated by a multi-mode MS can no
longer be processed in its serving cell due to limited network coverage or other factors. For
example, when an MS making a call in the GSM cell edge is about to move outside the cell, an
emergency handover is triggered to avoid call drops. For details, see the Handover Feature
Parameter Description.
Better cell handover is triggered when the signal quality of a neighboring cell is better than that
of the serving cell. Better cell handovers help improve service quality and user experience. For
example, when the signal quality of a WCDMA cell is better than that of the serving GSM cell,
MSs in the serving cell can be handed over to the WCDMA cell to achieve higher voice quality.
For details, see the Handover Feature Parameter Description.
Load-based inter-RAT handover is triggered when the traffic load on the serving cell is too high.
For a WCDMA-to-GSM load-based handover, if the traffic load on the target GSM cell is also
high, the target cell rejects the handover to avoid ping-pong handovers.
Service-based handover allows an operator to use the MSC to choose a network for MSs. If the
MSC indicates that a service-based handover should be performed on a call in a GSM cell, the
BSS hands over the call to a WCDMA cell. If the MSC indicates that a call should not be handed
over to a WCDMA call, the BSS does not hand over the call to a WCDMA cell when a handover
is needed during the call.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
6 GSM/WCDMA Inter-RAT CS Handover
6.1 CS Handover from WCDMA to GSM
MSs in dedicated mode can be handed over from a WCDMA cell to a GSM cell. The handover
decision and handover procedure are controlled by the RNC. The BSS considers the handover
from WCDMA to GSM as a general inter-BSC handover.
The handover from WCDMA to GSM is supported when INTERRATINBSCHOEN is set to
YES(Yes).
6.2 CS Handover from GSM to WCDMA
6.2.1 Overview
Handover from GSM to WCDMA is supported when INTERRATOUTBSCHOEN is set to
YES(Yes).
The BSS determines whether to initiate an inter-RAT handover from GSM to WCDMA. The
process is as follows:
1.
An MS in dedicated mode obtains the neighboring WCDMA cell list and other information
from measurement information.
2.
The MS reports the measurement result to the BSS through an MR.
3.
After receiving the measurement result, the BSS determines whether to initiate a handover
based on the measurement result and the handover algorithm.
Inter-RAT handover from GSM to WCDMA can be classified into emergency handover and
better 3G cell handover. The algorithm for emergency handover from GSM to WCDMA is the
same as that for general emergency handover. For details, see the Handover Feature Parameter
Description.
In the GSM network, the HOOPTSEL parameter specifies whether a GSM cell or a WCDMA
cell is preferentially selected as the target cell.
l
l
l
If HOOPTSEL is set to Pre_2G_Cell(Preference for 2G cell), the BSC preferentially
selects a GSM cell as the target cell.
If HOOPTSEL is set to Pre_3G_Cell(Preference for 3G cell), the BSC preferentially
selects a WCDMA cell as the target cell.
If HOOPTSEL is set to Pre_2G_CellThres(Preference 2G cell by thresh), the BSC
determines the target cell according to the receive level of the neighboring GSM cells and
the value of HOPRETH2G. If the receive level of all neighboring GSM cells is lower than
HOPRETH2G, the BSC selects a WCDMA cell as the target cell.
Better 3G cell handover can be performed only when both INTERRATOUTBSCHOEN and
BET3GHOEN are set to YES(Yes). As the measurement result of a WCDMA cell can be
reported in the format of RSCP or Ec/No, the methods for handover decision differ accordingly.
l
When the value of FDDREP is RSCP(RSCP), the better 3G cell handover is triggered if
during HOSTAT3G, the following condition is met for the period specified by
HODURT3G:
CPICH RSCP > HORSCPTH3G
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
l
6 GSM/WCDMA Inter-RAT CS Handover
When the value of FDDREP is EcN0(Ec/N0), the better 3G cell handover is triggered if
the following condition is met for the period specified by HODURT3Gwithin
HOSTAT3G:
CPICH Ec/No > HOECNOTH3G
6.3 Service-Based CS Handover from GSM to WCDMA
This section describes the GBFD-114321 GSM/WCDMA Service Based Handover feature.
6.3.1 Overview
Operators can provide more diversified services when GSM and WCDMA coexist in a mixed
network. Services of different types can be carried on different networks to optimize the
utilization of resources. For example, voice services and low-rate data services are carried on
the GSM network, and high-rate data services are carried on the WCDMA network to allow
high peak throughput.
6.3.2 Procedure
If INTERRATOUTBSCHOEN is set to YES(Yes), the BSC applies different handover
algorithms for MSs to be handed over from a GSM cell to a WCDMA cell according to the
setting of InterRatServiceLoadHoSwitch.
l
If InterRatServiceLoadHoSwitch is set to CnService-based(CN Service-based), the BSC
processes handovers according to the service handover attributes of the core network (CN)
as follows:
– If the service handover indicator of the CN is Handover to UTRAN or cdma2000
should be performed, the MS should be handed over to a WCDMA cell. In this case,
the BSC selects a WCDMA cell from the neighboring cell list as the target cell and
starts the handover from GSM to WCDMA.
– If the service handover indicator of the CN is Handover to UTRAN or cdma2000
should not be performed, a GSM cell should be preferentially selected as the serving
cell. In this case, the BSC does not start the handover from GSM to WCDMA. If a
handover is required during the call, a GSM cell is preferentially selected as the target
cell.
l
l
– If the service handover indicator of the CN is Handover to UTRAN or cdma2000
shall not be performed, the MS must not be handed over to a WCDMA cell. In this
case, the BSC will not hand over the MS to a WCDMA cell, and selects only a GSM
cell as the target cell if a handover is required.
If InterRatServiceLoadHoSwitch is set to Service-based(Service-based), the BSC
removes the WCDMA candidate cell whose uplink/downlink traffic is in the minor
congestion level. If the MS is performing a CS service, the MS accesses the current GSM
cell.
If InterRatServiceLoadHoSwitch is set to Load-based(Load-based) and the value of the
IE "Service Handover" in the ASSIGNMENT REQUEST message sent from the CN is
handover to UTRAN or cdma2000 should be performed, the BSC selects a neighboring
WCDMA cell whose uplink and downlink loads meet the following condition from
WCDMA candidate cells:
G2GLoadAdjustCoeff x Load of the current GSM serving cell – 10 x Load of the neighboring
WCDMA cell ≥ 10 x G2G3GLdBlcDeltaThrd – 1000
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
6 GSM/WCDMA Inter-RAT CS Handover
If multiple neighboring WCDMA cells meet the preceding condition, the BSC starts the directed
retry to the WCDMA cell with the highest receive quality. If no neighboring WCDMA cell meets
the preceding condition, the BSC selects a GSM cell as the target cell.
NOTE
l
If there is no WCDMA candidate cell, or the directed retry to the WCDMA cell fails, the BSC starts the
reassignment procedure to a GSM cell.
When InterRatServiceLoadHoSwitch is set to Dynamic-based(Dynamic Service/Loadbased):
If the current cell has a normal load, the service-based WCDMA-to-GSM handover
algorithm is applied.
If the current cell has a high load, the load-based WCDMA-to-GSM handover algorithm
is applied.
6.4 Load-Based CS Handover from GSM to WCDMA
This section describes the GBFD-114322 GSM/WCDMA Load Based Handover feature .
6.4.1 Overview
In a mixed network where GSM and WCDMA coexist, MSs in connected mode can be handed
over between GSM and WCDMA to balance the overall network load and enlarge system
capacity.
If the GSM cell that the MS camps on is congested, the BSC redirects the MS to the WCDMA
network according to the load of the WCDMA network.
6.4.2 Procedure
If both INTERRATOUTBSCHOEN and OutSysLoadHoEn are set to YES(Yes), the following
conditions must be met to trigger the handover between GSM and WCDMA for MSs in
connected mode:
l
l
l
The flow control level of the current system is smaller than or equal to SYSFLOWLEV.
The load on the serving cell is greater than or equal to TRIGTHRES.
The Service Handover attribute of the service is not handover to UTRAN or cdma2000
shall not be performed.
A candidate WCDMA cell must meet the following conditions:
l
l
G2GLoadAdjustCoeff x Load of the current GSM serving cell – 10 x Load of the
neighboring WCDMA cell ≥ 10 x G2G3GLdBlcDeltaThrd – 1000
For a WCDMA FDD cell, the following conditions must be met if FDDREP is set to RSCP
(RSCP):
– InterRATLoadHoRSCPStart– InterRATLoadHoRSCPBandWidth < CPICH RSCP <
InterRATLoadHoRSCPStart
l
Issue 04 (2013-04-12)
– CPICH RSCP > IntRATLoadHORSCPThr
For a WCDMA FDD cell, the following conditions must be met if FDDREP is set to EcN0
(Ec/N0):
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
6 GSM/WCDMA Inter-RAT CS Handover
– InterRATLoadHoEcNoStart – InterRATLoadHoEcNoBandWidth < CPICH Ec/No <
InterRATLoadHoEcNoStart
– CPICH Ec/No > IntRATLoadHOEcNoThr
Cells that do not meet the preceding conditions are removed from the candidate WCDMA cell
list. If there are multiple cells in the candidate cell list, the BSC selects the cell with the highest
receive level.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7
7 GSM/WCDMA Inter-RAT PS Handover
GSM/WCDMA Inter-RAT PS Handover
This section describes the GBFD-119502 PS Handover Between GSM and WCDMA feature.
PS handover is introduced in 3GPP Release 6.
This feature involves WCDMA-to-GSM and GSM-to-WCDMA PS handovers.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7 GSM/WCDMA Inter-RAT PS Handover
7.1 WCDMA-to-GSM PS Handover
7.1.1 Overview
WCDMA-to-GSM PS handovers are initiated by the RNC. PS handovers have two phases:
handover preparation and handover execution. On the BSS side, the preparation and execution
procedures for WCDMA-to-GSM PS handovers are the same as those for inter-BSC handovers
in the GSM system.
WCDMA-to-GSM PS handovers are supported when SPTINTERRATINBSCPSHO is set to
SUPPORT(Support).
7.1.2 Procedure
This section uses an inter-SGSN WCDMA-to-GSM PS handover as an example. The procedures
for the intra-SGSN and inter-SGSN WCDMA-to-GSM PS handovers are similar. The only
difference is that during intra-SGSN WCDMA-to-GSM PS handover, there is no inter-SGSN
signaling interaction because the GSM cell and the WCDMA cell use the same SGSN.
Figure 7-1 shows the signaling procedure during handover preparation.
Figure 7-1 WCDMA-to-GSM PS handover preparation
1. The RNC makes the decision to perform a handover to a GSM cell.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7 GSM/WCDMA Inter-RAT PS Handover
2. The RNC sends a Relocation Required message to the 3G SGSN, with the IE "Relocation
Type" set to UE Involved in relocation of SRNS.
3. The 3G SGSN checks the IE "Target Cell Identifier" and determines that the handover is an
inter-RAT handover. Then, the 3G SGSN sends a Forward Relocation Request message to the
2G SGSN of the target cell.
4. The 2G SGSN sends a PS Handover Request message to the BSS, requesting the BSS to
reserve resources for the handover. The 2G SGSN then activates the PFC for the handover.
5. The BSS reserves resources and allocates a TBF for the handover based on the PFC.
6. The BSS creates the Target BSS to Source BSS Transparent Container, which contains the
PS handover command.
7. The BSS responds to the 2G SGSN with a PS Handover Request Acknowledge message and
is then ready to receive downlink data.
8. The 2G SGSN responds with a Forward Relocation Response message. The handover
preparation is complete.
Figure 7-2 shows the signaling procedure during handover execution.
Figure 7-2 WCDMA-to-GSM PS handover execution
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7 GSM/WCDMA Inter-RAT PS Handover
1. The 3G SGSN receives downlink data from the GGSN and sends the data to the MS through
the RNC.
2. The 3G SGSN sends a Relocation Command message to the source RNC.
3. The RNC forwards packet data to the 2G SGSN through the 3G SGSN.
4. The RNC suspends uplink and downlink data transfer, and sends a Handover From UTRAN
Command message to the MS. After receiving this message, the MS suspends the uplink data
transmission.
5. The RNC sends a Forward SRNS Context (RAB contexts) message to the 2G SGSN through
the 3G SGSN. Then, the 2G SGSN responds with a Forward SRNS Context Acknowledge
message.
6. The MS executes the handover. In this step, the MS sends access bursts (ABs) to the target
BSS and accesses the target GSM cell. Then, the MS receives the timing advance (TA) from the
BSS.
7./7a. After accessing the cell, the MS processes the Non-Access Stratum (NAS) container and
then sends an exchange identifier (XID) Response message to the 2G SGSN to resume the uplink
data transfer.
8. After receiving the first correct RLC/MAC block, the BSS sends a PS Handover Complete
message to inform the 2G SGSN that the handover is successful. The 2G SGSN then forwards
uplink data to the GGSN.
9. After receiving the PS Handover Complete message, the 2G SGSN sends a Forward
Relocation Complete message to inform the 3G SGSN that the handover is complete. The 3G
SGSN then responds with a Forward Relocation Complete Acknowledge message.
10. The 2G SGSN sends an Update PDP Context Request message to the GGSN. The GGSN
then updates the PDP context fields and returns an Update PDP Context Response message.
From now on the GGSN sends new incoming downlink IP packets to the 2G SGSN instead of
to the 3G SGSN.
11. The 3G SGSN sends an Iu Release Command message to the RNC to release related
resources. After sending all necessary data to the MS, the RNC returns an Iu Release Complete
message to the 3G SGSN.
12./12a. The 2G SGSN may initiate LLC/SNDCP XID negotiation.
13. The MS starts the routing area update. The handover is complete.
7.2 GSM-to-WCDMA PS Handover
7.2.1 Overview
The conditions for triggering GSM-to-WCDMA PS handovers are defined in the GSM system,
and the handovers are initiated by the BSC. PS handovers have two phases: handover preparation
and handover execution.
Prerequisites
The prerequisites for GSM-to-WCDMA PS handover are as follows:
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
l
7 GSM/WCDMA Inter-RAT PS Handover
The MS supports PS handover.
The radio access capability reported by the MS contains the PS handover field, which indicates
that the MS supports PS handover.
l
The BSC supports PS handover.
The BSC supports PS handover when PSHOSUP is set to YES(Support), and
SPTINTERRATOUTBSCPSHO is set to SUPPORT(Support).
l
l
l
NACCSPT is set to YES(Yes) if NCO is set to NC0(NC0) or NC1(NC1) because NC0
and NC1 are based on NACC.
NC2SPT is set to YES(Yes) if NCO is set to NC2(NC2).
The SGSN supports PS handover.
The BVC RESET and BVC RESET ACK messages sent over the Gb interface contain the
Extended Feature Bitmap field, which specifies whether the Network Service Entity (NSE)
supports PS handover:
l
l
If the BVC RESET or BVC RESET ACK message sent by the SGSN does not contain the
Extended Feature Bitmap field, or if the Extended Feature Bitmap field specifies that PS
handover is not supported, none of the cells under the NSE of the SGSN support PS
handover. That is, the source cell does not support PS handover.
If the Extended Feature Bitmap field specifies that PS handover is supported, all cells under
the NSE of the SGSN support PS handover. That is, the source cell supports PS handover.
The BSC and the SGSN support the PFC procedure.
PFCSUP is set to YES(Support).
Trigger Conditions
The triggering conditions for GSM-to-WCDMA PS handover vary according to the setting of
NCO:
l
When NCO is set to NC0(NC0) or NC1(NC1):
NACCSPT is set to YES(Yes). The MS sends the BSC a PACKET CELL CHANGE
NOTIFICATION message, and target cell information contained in the message indicates
that the target cell is a WCDMA cell. SPTINTERRATOUTBSCPSHO is set to SUPPORT
(Support).
NOTE
l
The purpose of setting NACCSPT to YES(Yes) when NCO is set to NC0(NC0) or NC1(NC1) is to
enable MSs to send the BSC PACKET CELL CHANGE NOTIFICATION messages rather than to
use the NACC feature. With the PACKET CELL CHANGE NOTIFICATION message, MSs can
perform GSM-to-WCDMA PS handovers.
When NCO is set to NC2(NC2):
The MS sends the BSC an MR, and the BSC detects that the target cell is a WCDMA cell
that uses the PS handover algorithm. SPTINTERRATOUTBSCPSHO is set to SUPPORT
(Support).
Handover Algorithms
GSM-to-WCDMA PS handover algorithms are classified into the service-based handover
algorithm, quality-based handover algorithm, load-based handover algorithm, and coverageIssue 04 (2013-04-12)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7 GSM/WCDMA Inter-RAT PS Handover
based handover algorithm. Each handover algorithm has the same triggering conditions and
target cell selection mechanism as the corresponding NC2 cell reselection algorithm. For
example, the service-based handover algorithm has the same triggering conditions and target
cell selection mechanism as the service-based NC2 cell reselection algorithm. For detailed cell
reselection algorithms, see section 5.2.4 NC2 between GSM and WCDMA.
7.2.2 Procedure
On the BSS side, the GSM-to-WCDMA PS handover procedure is similar to the inter-BSC PS
handover procedure. The differences are as follows:
l
l
l
The target cell is a WCDMA cell.
The PS Handover Required message carries the Source BSC to Target RNC Transparent
Container, which contains IEs such as the MS radio access capability, paging mode, Global
TFI, and target cell SI request.
The PS Handover Required Acknowledge message carries the Source RNC to Target BSC
Transparent Container, which contains IEs such as the handover command and target cell
SI request.
This section uses an inter-SGSN GSM-to-WCDMA PS handover as an example. The procedures
for the intra-SGSN and inter-SGSN GSM-to-WCDMA PS handovers are similar. The only
difference is that during intra-SGSN GSM-to-WCDMA PS handover, there is no inter-SGSN
signaling interaction because the GSM cell and the WCDMA cell use the same SGSN.
Figure 7-3 shows the signaling procedure during handover preparation.
Figure 7-3 GSM-to-WCDMA PS handover preparation
1. The source BSS decides to initiate a PS handover to a WCDMA cell. At this point, both uplink
and downlink user data is transmitted over the following: TBFs between the MS and the source
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7 GSM/WCDMA Inter-RAT PS Handover
BSS, BSSGP PFC tunnels between the source BSS and the 2G SGSN, GTP tunnels between the
2G SGSN and the GGSN.
2. The source BSS sends a PS Handover Required message, which carries the Target RNC
Identifier information, to the 2G SGSN.
3. After detecting that the handover is an inter-RAT handover to WCDMA based on the Target
RNC Identifier, the 2G SGSN sends a Forward Relocation Request message to the 3G SGSN.
4. The 3G SGSN sends a Relocation Request message to request the target RNC to reserve
resources in the target WCDMA cell.
The target RNC responds with a Relocation Request Acknowledge message after resources are
reserved in the target RNC.
6. The 3G SGSN sends a Forward Relocation Response message to the 2G SGSN. The handover
preparation is complete.
Figure 7-4 shows the signaling procedure during handover execution.
Figure 7-4 GSM-to-WCDMA PS handover execution
The 2G SGSN continues to receive downlink and uplink user plane data.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
7 GSM/WCDMA Inter-RAT PS Handover
1.
After receiving a Forward Relocation Response message from the 3G SGSN, the 2G SGSN
may forward downlink data to the target RNC through the 3G SGSN. The target RNC then
sends the data to the MS over the air interface.
2.
The 2G SGSN continues the PS handover by sending a PS Handover Required
Acknowledge message to the BSS. Before sending this message, the 2G SGSN, based on
QoS, may suspend downlink data transfer for any PDP contexts.
3.
The 2G SGSN forwards the GTP-U context to the target RNC.
4.
The BSS sends a PS Handover Command message containing the Handover to UTRAN
Command message to the MS, instructing the MS to hand over to the target WCDMA cell.
5.
The MS accesses the WCDMA cell.
6.
After detecting that the MS has accessed the target cell, the RNC sends a Relocation Detect
message to the 3G SGSN.
7.
The MS sends a Handover to UTRAN Complete message to the RNC.
8.
When the new source RNC-ID + S-RNTI are successfully exchanged with the MS, the
RNC sends a Relocation Complete message to inform the 3G SGSN that the handover is
complete.
9.
The 3G SGSN sends a Forward Relocation Complete message to inform the 2G SGSN that
the handover is complete and the reserved resources should be released.
10. The 3G SGSN sends an Update PDP Context Request message to the GGSN. The GGSN
updates the PDP context fields. After the PDP context fields are updated, the GGSN sends
new incoming downlink IP packets to the 3G SGSN instead of to the 2G SGSN.
11. The 2G SGSN performs the PFC procedure to release the corresponding resources.
12. The MS updates the route area. The handover is complete.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
8 Related Features
8
Related Features
Feature
Prerequisite
Feature
Mutually
Exclusive Feature
GSM/WCDMA
Interoperability
None
None
Affected Feature
l When the GSM/
WCDMA
Interoperability
feature is used with
the GBFD-511403
Extended BCCH
feature, the delay in
a location update
after WCDMA-toGSM cell
reselection
decreases and the
CS paging success
rate increases.
l When the GSM/
WCDMA
Interoperability
feature is used with
GBFD-114325 Fast
WCDMA
Reselection at 2G
CS Call Release, an
MS can reselect a
WCDMA cell after
releasing a call in a
GSM cell. This
reduces the number
of location updates
and the duration for
the MS to camp on
the GSM cell,
increases the CS
paging success rate,
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Feature
Prerequisite
Feature
8 Related Features
Mutually
Exclusive Feature
Affected Feature
and improves user
experience.
2G/3G Cell
Reselection Based
on MS State
None
GBFD-116201
Network-Controlled
Cell Reselection
(NC2)
l When the 2G/3G
Cell Reselection
Based on MS State
feature is used with
the GBFD-511403
Extended BCCH
feature, the delay in
a location update
after WCDMA-toGSM cell
reselection
decreases and the
CS paging success
rate increases.
l When the 2G/3G
Cell Reselection
Based on MS State
feature is used with
GBFD-114325 Fast
WCDMA
Reselection at 2G
CS Call Release, an
MS can reselect a
WCDMA cell after
releasing a call in a
GSM cell. This
reduces the number
of location updates
and the duration for
the MS to camp on
the GSM cell,
increases the CS
paging success rate,
and improves user
experience.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
8 Related Features
Feature
Prerequisite
Feature
Mutually
Exclusive Feature
Affected Feature
BSC supporting
Blind Search
GBFD-114301
GSM/WCDMA
Interoperability or
GBFD-114302
GSM/TD-SCDMA
Interoperability
NC2 cannot be used
when GBFD-511110
BSC supporting
Blind Search is
enabled because the
target cell in cell
reselection in NC2
mode is determined
based on the
information about
neighboring 3G cells
reported by MSs.
Enabling
GBFD-511110 BSC
supporting Blind
Search affects the
implementation of
NC1.
l GBFD-511110
BSC supporting
Blind Search is
mutually
exclusive with
the following
feature:
GBFD-511405
NC2 between
GSM and TDSCDMA
l GBFD-511110
BSC supporting
Blind Search is
mutually
exclusive with
the following
functions:
Forced NC2
between GSM
and WCDMA
function
With the BSC
supporting Blind
Search feature, the
BSC sends only
frequency information
to MSs. MSs in packet
transfer mode cannot
send MRs about
neighboring 3G cells to
the BSC based on the
frequency information.
However, cell
reselection of MSs in
NC1 mode is not
affected because MSs
can perform
autonomous cell
reselections.
GSM-toWCDMA/TDSCDMA
networkcontrolled cell
reselection
function in the
GBFD-116201
NetworkControlled Cell
Reselection
(NC2) feature
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Issue 04 (2013-04-12)
8 Related Features
Feature
Prerequisite
Feature
Mutually
Exclusive Feature
Affected Feature
GSM/WCDMA
Service Based
Handover
GBFD-114301
GSM/WCDMA
Interoperability
None
None
GSM/WCDMA
Load Based
Handover
GBFD-114301
GSM/WCDMA
Interoperability
None
None
Fast WCDMA
Reselection at 2G
CS Call Release
GBFD-114301
GSM/WCDMA
Interoperability
None
None
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
9
9 Impact on the Network
Impact on the Network
9.1 GSM/WCDMA Interoperability
9.1.1 Impact on System Capacity
The GSM/WCDMA Interoperability feature allows MSs to hand over to WCDMA cells in areas
covered by both GSM and WCDMA networks. This increases the overall capacities of the GSM
and WCDMA networks.
9.1.2 Impact on Network Performance
In areas covered by both GSM and WCDMA networks, this feature allows MSs to hand over to
WCDMA cells. This increases PS data rates. In areas are covered by only the GSM network,
this feature allows MSs to hand over to GSM cells. This ensures service continuity.
9.2 GSM/WCDMA Service Based Handover
9.2.1 Impact on System Capacity
The GSM/WCDMA Service Based Handover feature enables the CN to appropriately allocate
services of different types to the GSM and WCDMA networks. This increases the overall
capacities of the GSM and WCDMA networks. With this feature, the CN allocates CS services
and low-rate PS services to the GSM network and high-rate PS services to the WCDMA network.
This maximizes the peak throughput.
9.2.2 Impact on Network Performance
None
9.3 GSM/WCDMA Load Based Handover
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
9 Impact on the Network
9.3.1 Impact on System Capacity
The GSM/WCDMA Load Based Handover feature allows MSs to handover from a GSM cell
to a WCDMA cell when the GSM cell is congested. This balances the load between the GSM
and WCDMA networks, improves the overall capacities of the GSM and WCDMA networks,
and prevents the system from being overloaded.
9.3.2 Impact on Network Performance
This feature decreases the congestion rate in GSM cells.
9.4 2G/3G Cell Reselection Based on MS State
9.4.1 Impact on System Capacity
With QP set to a value ranging from 0 to 15, this feature allows GSM/WCDMA dual-mode MSs
in packet transfer mode to reselect to WCDMA cells or GSM cells in areas covered by both
GSM and WCDMA networks. This increases the overall capacities of the GSM and WCDMA
networks.
9.4.2 Impact on Network Performance
In areas covered by both GSM and WCDMA networks, with QP set to a value ranging from 0
to 15, this feature allows GSM/WCDMA dual-mode MSs in packet transfer mode to reselect to
WCDMA cells or GSM cells. This increases PS data rates, prevents these MSs from
automatically searching for neighboring WCDMA cells, and therefore reduces KPI
deterioration.
9.5 BSC supporting Blind Search
9.5.1 Impact on System Capacity
N/A
9.5.2 Impact on Network Performance
The BSC supporting Blind Search feature enables the BSC to configure only WCDMA/TDSCDMA frequencies for cell reselection. Such a cell reselection takes a longer time than a cell
reselection using both WCDMA/TD-SCDMA frequencies and scrambling codes.
9.6 Fast WCDMA Reselection at 2G CS Call Release
9.6.1 Impact on System Capacity
The Fast WCDMA Reselection at 2G CS Call Release feature reduces the duration for MSs to
camp on GSM cells and decreases the number of times that the MSs initiate services in GSM
cells. This increases the overall capacities of the GSM and WCDMA networks.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
9 Impact on the Network
9.6.2 Impact on Network Performance
This feature allows MSs to reselect WCDMA cells after releasing calls in GSM cells. This
decreases the number of location updates and increases the CS paging success rate.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
10
10 Engineering Guidelines
Engineering Guidelines
10.1 When to Use Interoperability Between GSM and
WCDMA
10.1.1 GSM/WCDMA Interoperability
NOTE
When setting inter-RAT cell reselection parameters and handover thresholds, take note of the correlation
between the GSM and TD-SCDMA parameters to prevent ping-pong cell reselections and handovers: Set
FddRptThreshold2Ecno and FddRptThreshold2Rscp to 10.
It is recommended that the GSM/WCDMA Interoperability feature be used with the following
function:
l
Early classmark sending function: Set ECSC to YES(Yes) to enable this function. With
this function, the BSC quickly determines whether MSs camping on a GSM cell are dualmode MSs.
10.1.2 GSM/WCDMA Service Based Handover
It is recommended that the GSM/WCDMA Service Based Handover feature be used in scenarios
where both the GSM and WCDMA networks are covered and differentiated QoS is supported
by CS and PS services. With this feature, PS services are preferentially processed in the
WCDMA network, whereas CS services are still processed in the GSM network.
10.1.3 GSM/WCDMA Load Based Handover
It is recommended that the GSM/WCDMA Load Based Handover feature be used in scenarios
where both the GSM and WCDMA networks are covered and the GSM network is overloaded.
In coordination with the CN, this feature allocates CS services to the WCDMA network. This
increases the resource usage of the WCDMA network, decreases the load and interference on
the GSM network, and ensures the QoS of CS services.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
10 Engineering Guidelines
10.1.4 2G/3G Cell Reselection Based on MS State
NOTE
When setting inter-RAT cell reselection parameters and handover thresholds, take note of the correlation
between the GSM and TD-SCDMA parameters to prevent ping-pong cell reselections and handovers.
It is recommended that the 2G/3G Cell Reselection Based on MS State feature be used with the
following function:
l
Early classmark sending function: Set ECSC to YES(Yes) to enable this function. With
this function, the BSC quickly determines whether MSs camping on a GSM cell are dualmode MSs.
10.1.5 BSC supporting Blind Search
None
10.1.6 Fast WCDMA Reselection at 2G CS Call Release
None
10.2 Information to Be Collected
10.2.1 GSM/WCDMA Interoperability
Before deploying the GSM/WCDMA Interoperability feature, collect the following information:
l
l
WCDMA network planning information: used for configuring neighboring cells.
Interoperability policies for operators, such as the requirements for setting inter-RAT cell
reselection parameters and whether GSM-to-WCDMA CS handover is required: used to
properly set specific parameters and determine whether to enable specific functions.
10.2.2 GSM/WCDMA Service Based Handover
Before deploying the GSM/WCDMA Service Based Handover feature, collect the following
information:
Whether the CN for GSM CS services supports GSM/WCDMA service-based handovers: used
to determine whether this feature is allowed.
10.2.3 GSM/WCDMA Load Based Handover
Before deploying the GSM/WCDMA Load Based Handover feature, collect the following
information:
Load information about GSM cells, such as TCH congestion rate and proportion of TCHHs to
all TCHs in GSM cells: used to set parameters related to this feature.
10.2.4 2G/3G Cell Reselection Based on MS State
Before deploying the 2G/3G Cell Reselection Based on MS State feature, collect the following
information:
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
l
l
10 Engineering Guidelines
WCDMA network planning information: used for configuring neighboring cells.
Interoperability policies for operators, such as the requirements for setting inter-RAT cell
reselection parameters and whether GSM-to-WCDMA CS handover is required: used to
properly set specific parameters and determine whether to enable specific functions.
10.2.5 BSC supporting Blind Search
Before deploying the BSC supporting Blind Search feature, collect the following information:
l
l
WCDMA/TD-SCDMA network planning information: used for configuring WCDMA/
TD-SCDMA frequencies.
Interoperability policies for operators, such as the requirements for setting inter-RAT cell
reselection parameters and whether GSM-to- WCDMA/TD-SCDMA CS handover is
required: used to properly set specific parameters and determine whether to enable specific
functions.
10.2.6 Fast WCDMA Reselection at 2G CS Call Release
Before deploying the Fast WCDMA Reselection at 2G CS Call Release feature, collect the
following information:
l
l
The proportion of WCDMA cells to all cells in specified areas
Whether GSM/WCDMA dual-mode MSs are used
10.3 Network Planning
10.3.1 GSM/WCDMA Interoperability
RF Planning
N/A
Network Topology
For GSM cells to be enabled with the GSM/WCDMA Interoperability feature, plan neighboring
cell configurations based on the topology of the adjacent WCDMA network. A GSM cell can
be configured with a maximum of 64 neighboring WCDMA cells. These neighboring cells can
use a maximum of three frequencies, with each frequency supporting a maximum of 32
neighboring WCDMA cells.
Hardware Planning
N/A
10.3.2 GSM/WCDMA Service Based Handover
RF Planning
N/A
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
10 Engineering Guidelines
Network Topology
N/A
Hardware Planning
N/A
10.3.3 GSM/WCDMA Load Based Handover
RF Planning
N/A
Network Topology
N/A
Hardware Planning
N/A
10.3.4 2G/3G Cell Reselection Based on MS State
RF Planning
N/A
Network Topology
N/A
Hardware Planning
N/A
10.3.5 BSC supporting Blind Search
RF Planning
N/A
Network Topology
l
l
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If INPUT3GARFCNENTYPE is set to FDD, The BSC supporting Blind Search feature
supports a maximum of eight 3G frequencies.ARFCN1 through ARFCN8 are valid,
whereas ARFCN9 through ARFCN16 are invalid.
If INPUT3GARFCNENTYPE is set to TDD, The BSC supporting Blind Search feature
supports a maximum of sixteen 3G frequencies. ARFCN1 through ARFCN16 are valid.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
10 Engineering Guidelines
Hardware Planning
N/A
10.3.6 Fast WCDMA Reselection at 2G CS Call Release
RF Planning
N/A
Network Topology
N/A
Hardware Planning
N/A
10.4 Overall Deployment Procedure
The GSM/WCDMA Interoperability feature, which are basic feature, need to be deployed
preferentially.
Other features are optional and can be enabled based on individual needs.
10.5 Deploying GSM/WCDMA Interoperability
For details about how to activate, verify, and deactivate this feature, see Configuring GSM/
WCDMA Interoperability.
10.6 Deploying 2G/3G Cell Reselection Based on MS State
For details about how to activate, verify, and deactivate this feature, see Configuring 2G/3G
Cell Reselection Based on MS State.
10.7 Deploying GSM/WCDMA Service Based Handover
For details about how to activate, verify, and deactivate this feature, see Configuring GSM/
WCDMA Service Based Handover.
10.8 Deploying GSM/WCDMA Load Based Handover
For details about how to activate, verify, and deactivate this feature, see Configuring GSM/
WCDMA Load Based Handover.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
10 Engineering Guidelines
10.9 Deploying Fast WCDMA Reselection at 2G CS Call
Release
For details about how to activate, verify, and deactivate this feature, see Configuring the Fast
WCDMA Reselection at 2G CS Call Release..
10.10 Deploying BSC supporting Blind Search
For details about how to activate, verify, and deactivate this feature, see Configuring BSC
supporting Blind Search.
10.11 Performance Optimization
10.11.1 GSM/WCDMA Interoperability and 2G/3G Cell Reselection
Based on MS State
Monitoring
Monitor the number of allowed FDD calls to check whether the GSM/WCDMA Interoperability
and 2G/3G Cell Reselection Based on MS State features need to be optimized.
Parameter Optimization
If the number of allowed FDD calls is great, MSs are likely to camp on GSM cells. In addition
to optimizing WCDMA coverage, modify the settings of SI-related parameters to increase the
possibility of GSM-to-WCDMA cell reselection. You are advised to set QI to 7 to ensure that
MSs always search for 3G cells. In addition, you are advised to set FDDQMINOFFSET,
FDDRSCPMIN, and FDDQMIN to small values, and FDDQOFF to a large value.
10.11.2 GSM/WCDMA Service Based Handover and GSM/
WCDMA Load Based Handover
Monitoring
Monitor the inter-RAT outgoing cell handover success rate and call drop rate to check whether
the GSM/WCDMA Service Based Handover and GSM/WCDMA Load Based Handover
features need to be optimized.
Parameter Optimization
If the inter-RAT outgoing cell handover success rate is low, set RSCPOFF to a small value for
increasing the number of candidate cells, and set HOSTAT3G to a large value for reducing the
number of handovers.
If the call drop rate is high, set ECNOOFF, HODURT3G, and TRIGTHRES to small values
for accelerating handover decisions.
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Interoperability Between GSM and WCDMA Feature
Parameter Description
10 Engineering Guidelines
10.11.3 Fast WCDMA Reselection at 2G CS Call Release
N/A
10.11.4 BSC supporting Blind Search
N/A
10.12 Troubleshooting
None
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Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
11
Parameters
Table 11-1 Parameter description
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
ARFCN1
BSC6900
SET
G3GARFCN
GBFD-511110
BSC supporting
Blind Search
Meaning:A
configured
UARFCN. If
this parameter is
set to 65535, the
UARFCN is
invalid.
GUI Value
Range:
0~16383;65535
Unit:None
Actual Value
Range:0~16383,
65535
Default Value:
65535
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
ARFCN16
BSC6900
SET
G3GARFCN
GBFD-511110
BSC supporting
Blind Search
Meaning:A
configured
UARFCN. If
this parameter is
set to 65535, the
UARFCN is
invalid.
GUI Value
Range:
0~16383;65535
Unit:None
Actual Value
Range:0~16383,
65535
Default Value:
65535
ARFCN8
BSC6900
SET
G3GARFCN
GBFD-511110
BSC supporting
Blind Search
Meaning:A
configured
UARFCN. If
this parameter is
set to 65535, the
UARFCN is
invalid.
GUI Value
Range:
0~16383;65535
Unit:None
Actual Value
Range:0~16383,
65535
Default Value:
65535
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Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
ARFCN9
BSC6900
SET
G3GARFCN
GBFD-511110
BSC supporting
Blind Search
Meaning:A
configured
UARFCN. If
this parameter is
set to 65535, the
UARFCN is
invalid.
GUI Value
Range:
0~16383;65535
Unit:None
Actual Value
Range:0~16383,
65535
Default Value:
65535
BET3GHOEN
BSC6900
SET
GCELLHOUT
RANFDD
GBFD-114301
GBFD-114302
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
Meaning:Wheth
er to enable the
3G better cell
handover
algorithm. If this
parameter is set
to YES, better
cell handovers
to 3G
neighboring
cells are
allowed.
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
CELLRXQUA
LWORSENRA
TIOTHRSH
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:The
number of times
that the
downlink
transmission
quality of the
MS is lower than
the transmission
quality
threshold of the
MS ("EDGE
GMSK Quality
Threshold",
"EDGE 8PSK
Quality
Threshold", or
"GPRS Quality
Threshold" by
TBF type) is
calculated
accumulatively.
When the rate of
the accumulated
value to the
number of
received
measurement
reports on the
downlink
transmission
quality (Packet
Downlink Ack/
Nack message)
is greater than or
equal to the
value of this
parameter, the
emergency
reselection is
triggered.
GBFD-511303
PS Handover
Between GSM
and LTE Based
on Quality
GUI Value
Range:0~100
Unit:%
Actual Value
Range:0~100
Default Value:
30
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
CELLSELEC
TAFTERCAL
LREL
BSC6900
SET
GCELLCCAD
GBFD-114325
Fast WCDMA
Reselection at
2G CS Call
Release
Meaning:This
parameter
specifies
whether to allow
a mobile phone
to preferentially
camp on a 3G
cell after a call is
terminated in the
areas covered by
both the GSM
network and the
UMTS network.
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
ECNOOFF
BSC6900
ADD
G3GNCELL
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Offset
in the Ec/No of a
3G neighboring
cell. As a
performance
counter for FDD
cells, Ec/No
indicates the
ratio of the
energy per
received chip to
the spectral
noise power
density. If
"FDDREP" in
the "SET
GCELLCCUTR
ANSYS"
command is set
to Ec/No, the Ec/
No reported by
the MS minus
the value of this
parameter is
used as the level
in the K criteria
for handover
decisions. The
level is used for
handovers from
2G networks to
3G networks.
The decibel
value
corresponding
to the parameter
values are as
follows: (For
details, see the
3GPP TS 45.008
protocol.): 0:
CPICH Ec/Io <
-24 dB 1: -24 dB
<= CPICH Ec/Io
< -23.5 dB 2:
-23.5 dB <=
CPICH Ec/Io <
-22 dB ... 47: -1
dB <= CPICH
MOD
G3GNCELL
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Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
Ec/Io < -0.5 dB
48: -0.5 dB <=
CPICH Ec/Io < 0
dB 49: 0 dB <=
CPICH Ec/Io.
GUI Value
Range:0~49
Unit:dB
Actual Value
Range:0~49
Default Value:3
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Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
ECSC
BSC6900
SET
GCELLCCBA
SIC
GBFD-111101
System
Information
Sending
Meaning:The
early classmark
sending control
(ECSC)
parameter
specifies
whether the MSs
in a cell use early
classmark
sending. After a
successful
immediate
assignment, the
MS sends
additional
classmark
information to
the network as
early as
possible. The
additional
classmark
information
mainly contains
the CM3
(classmark 3)
information.
The CM3
(classmark 3)
information
contains the
frequency band
support
capability of the
MS (used for the
future channel
assignment),
power
information
about each
frequency band
supported by the
MS (used for the
handover
between
different
frequency
bands), and
encryption
GBFD-114302
GSM/TDSCDMA
Interoperability
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Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
capability of the
MS.
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:YES
(Yes)
FDDCELLOF
F
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Offset
of a FDD cell
report. When the
priority of a 3G
cell is
sequenced, the
value of this
parameter be
added to the
receive level of
the 3G cell in the
measurement
report. The
values of this
parameter
correspond to
the following
decibel values:
0: 0 dB 1: 6 dB ...
7: 42 dB
GUI Value
Range:0~7
Unit:6dB
Actual Value
Range:0~42
Default Value:0
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Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDCELLTH
RED
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Thresh
old of a FDD cell
report. When the
receive level
value in the
measurement
report of a 3G
cell exceeds the
value of this
parameter, the
measurement
report takes
effect. After the
valid
measurement
report is filtered,
the 3G cell joins
the cell priority
sequence. The
values of this
parameter
correspond to
the following
decibel values:
0: 0 dB 1: 6 dB ...
6: 36 dB 7:
positive infinity
GUI Value
Range:0~7
Unit:6dB
Actual Value
Range:0~36,
Positive infinity
Default Value:0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDFREQCN
UM
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Numb
er of UTRAN
FDD cells that
should be
included in
measurement
report
GUI Value
Range:0~3
Unit:None
Actual Value
Range:0~3
Default Value:2
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Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDQMIN
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:This
parameter
specifies one of
the parameters
for FDD cell
reselection. A
FDD cell
becomes a
candidate cell if
all the following
conditions are
met for five
consecutive
seconds:
1.Receive level
of the FDD cell
> Average
receive level of
the current
serving cell +
"FDD Q offset";
The FDD cell
meets the
following
condition in the
case of any
neighboring 2G
cell: Receive
level of the FDD
cell > Receive
level of any
neighboring 2G
cell + "FDD Q
offset"; 2. Ec/No
of the FDD cell
> "FDD Qmin" "FDD Qmin
Offset"; 3.
Receive level of
the FDD cell >
"RSCP
Threshold"; If
multiple FDD
cells meet the
preceding
conditions, the
MS reselects the
cell with the
strongest
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Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
receive level.
See 3GPP TSs
45.008 and
25.304. The
values of this
parameter
correspond to
the following
decibel values:
0: -20 dB, 1: -6
dB, 2: -18 dB, 3:
-8 dB, 4: -16 dB,
5: -10 dB, 6: -14
dB, 7: -12 dB.
GUI Value
Range:0~7
Unit:dB
Actual Value
Range:-20, -6,
-18, -8, -16, -10,
-14, -12
Default Value:7
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Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDQMINOF
FSET
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Offset
of the minimum
threshold for Ec/
No during a
FDD cell
reselection. A
FDD cell
becomes a
candidate cell if
all the following
conditions are
met for five
consecutive
seconds:
1.Receive level
of the FDD cell
> Average
receive level of
the current
serving cell +
"FDD Q offset";
The FDD cell
meets the
following
condition in the
case of any
neighboring 2G
cell: Receive
level of the FDD
cell > Receive
level of any
neighboring 2G
cell + "FDD Q
offset"; 2. Ec/No
of the FDD cell
> "FDD Qmin" "FDD Qmin
Offset"; 3.
Receive level of
the FDD cell >
"RSCP
Threshold"; If
multiple FDD
cells meet the
preceding
conditions, the
MS reselects the
cell with the
strongest
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
receive level.
See 3GPP TSs
45.008 and
25.304.
GUI Value
Range:0~7
Unit:dB
Actual Value
Range:0~7
Default Value:0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDQOFF
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:This
parameter
specifies one of
the thresholds of
the signal level
for 3G cell
reselection. A
FDD cell
becomes a
candidate cell if
all the following
conditions are
met for five
consecutive
seconds:
1.Receive level
of the FDD cell
> Average
receive level of
the current
serving cell +
"FDD Q offset";
The FDD cell
meets the
following
condition in the
case of any
neighboring 2G
cell: Receive
level of the FDD
cell > Receive
level of any
neighboring 2G
cell + "FDD Q
offset"; 2. Ec/No
of the FDD cell
> "FDD Qmin" "FDD Qmin
Offset"; 3.
Receive level of
the FDD cell >
"RSCP
Threshold"; If
multiple FDD
cells meet the
preceding
conditions, the
MS reselects the
cell with the
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
strongest
receive level.
See 3GPP TSs
45.008 and
25.304. The
values of this
parameter
correspond to
the following
decibel values:
0: - (always
select a cell if
acceptable) 1:
-28 dB, 2: -24
dB, ... 15: 28 dB.
GUI Value
Range:0~15
Unit:4dB
Actual Value
Range:Negative
infinity, -28~28
Default Value:8
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDREP
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:This
parameter
specifies
whether Ec/No
or RSCP is used
for the
measurement
report on an
FDD cell. Ec/No
stands for the
signal-to-noise
ratio. RSCP
stands for the
received signal
code power.
GBFD-110801
GBFD-110802
Processing of
Measurement
Report
Pre-processing
of Measurement
Report
GUI Value
Range:RSCP
(RSCP), EcN0
(Ec/No)
Unit:None
Actual Value
Range:RSCP,
EcN0
Default
Value:RSCP
(RSCP)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FddReselTime
Thd
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Durati
on for triggering
a reselection
from a GSM cell
to a UTRAN
FDD
neighboring cell
for an MS in
packet transfer
mode. If an MS
is in packet
transfer mode
for a period
longer than the
duration
specified by this
parameter, a cell
reselection is
triggered.
GUI Value
Range:0~60000
Unit:ms
Actual Value
Range:0~60000
Default Value:
2000
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FddRptThresh
old2Ecno
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Minim
um Ec/No
threshold 2 for
reporting
measurement
reports in FDD
cells. If
"FDDREP" is
set to RSCP, the
value of this
parameter is
used by the
information
element
FDD_REPORT
ING_THRESH
OLD_2 in the
system
information. If
this parameter is
set to 255, the
information
element
FDD_REPORT
ING_THRESH
OLD_2 is not
delivered. The
decibel value
corresponding
to the parameter
values are as
follows: (For
details, see the
3GPP TS 45.008
protocol.): 0:
CPICH Ec/Io <
-24 dB 1: -24 dB
<= CPICH Ec/Io
< -23.5 dB 2:
-23.5 dB <=
CPICH Ec/Io <
-22 dB ... 47: -1
dB <= CPICH
Ec/Io < -0.5 dB
48: -0.5 dB <=
CPICH Ec/Io < 0
dB 49: 0 dB <=
CPICH Ec/Io.
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
GUI Value
Range:
0~49;255
Unit:None
Actual Value
Range:0~49,
255
Default Value:
255
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FddRptThresh
old2Rscp
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Minim
um RSCP
threshold 2 for
reporting
measurement
reports in FDD
cells. If
"FDDREP" is
set to Ec/No, the
value of this
parameter is
used by the
information
element
FDD_REPORT
ING_THRESH
OLD_2 in the
system
information. If
this parameter is
set to 255, the
information
element
FDD_REPORT
ING_THRESH
OLD_2 is not
delivered. The
decibel value
corresponding
to the parameter
values are as
follows: (For
details, see the
3GPP TS 45.008
protocol.): 0:
CPICH RSCP <
-115 dBm 1:
-115 dBm <=
CPICH RSCP <
-114 dBm 2:
-113 dBm <=
CPICH RSCP <
-113 dBm ... 61:
-55 dBm <=
CPICH RSCP <
-54 dBm 62: -54
dBm <= CPICH
RSCP < -53
dBm 63: -53
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
dBm <= CPICH
RSCP.
GUI Value
Range:
0~63;255
Unit:None
Actual Value
Range:0~63,
255
Default Value:
255
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
FDDRSCPMI
N
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Minim
um level
threshold of
UTRAN cell
reselection.
During the cell
reselection
decision from a
GSM cell to a
FDD cell, this
parameter is
used to calculate
the RSCP
threshold of the
target cell. A
FDD cell
becomes a
candidate cell if
all the following
conditions are
met for five
consecutive
seconds:
1.Receive level
of the FDD cell
> Average
receive level of
the current
serving cell +
"FDD Q offset";
The FDD cell
meets the
following
condition in the
case of any
neighboring 2G
cell: Receive
level of the FDD
cell > Receive
level of any
neighboring 2G
cell + "FDD Q
offset"; 2. Ec/No
of the FDD cell
> "FDD Qmin" "FDD Qmin
Offset"; 3.
Receive level of
the FDD cell >
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
"RSCP
Threshold"; If
multiple FDD
cells meet the
preceding
conditions, the
MS reselects the
cell with the
strongest
receive level.
See 3GPP TSs
45.008 and
25.304. The
values of this
parameter
correspond to
the following
decibel values: 0
= -114 dBm, 1 =
-112 dBm, 2 =
-110 dBm, ... 14
= -86 dBm, 15 =
-84 dBm.
GUI Value
Range:0~15
Unit:2dBm
Actual Value
Range:-114~-84
Default Value:0
FDDRSCPQU
ALTHRSH
BSC6900
ADD
GEXT3GCEL
L
GBFD-114301
GSM/WCDMA
Interoperability
MOD
GEXT3GCEL
L
Meaning:Minim
um RSCP of the
3G FDD cell
candidate
GUI Value
Range:0~63
Unit:None
Actual Value
Range:0~63
Default Value:
10
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74
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
G2G3GLdBlc
DeltaThrd
BSC6900
SET
OTHSOFTPA
RA
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Load
difference
threshold for
load-based
GSM-to-UMTS
handovers. The
MS can perform
directed retries
or initiates a
load-based
handover to a
UMTS cell
when the
following
condition is met:
((Load of the
neighboring
UMTS cell x 10)
- (Load of the
GSM cell x
"G2GLoadAdju
stCoeff")) >
(100 "G2G3GLdBlc
DeltaThrd") x
10. The actual
parameter value
is equal to the
configuration
value minus
100.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:0~200
Unit:%
Actual Value
Range:-100~10
0
Default Value:
110
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
G2GLoadAdju
stCoeff
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Coeffi
cient used to
modulate the
load level of a
2G system so
that the load
level of the 2G
system can be
compared with
that of a 3G
system.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:0~100
Unit:None
Actual Value
Range:0~100
Default Value:
10
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
GSMTOFDDF
ORCENC2
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Wheth
er to support
forced networkcontrolled cell
reselection from
a GSM cell to a
neighboring
UTRAN FDD
cell. If this
parameter is set
to SUPPORT
(Support) and
neighboring
UTRAN FDD
cells are
configured, the
BSC sends
GSM/UMTS
dual-mode MSs
in packet
transfer mode a
Packet
Measurement
Order message
with the network
operation mode
set to NC2.
Based on the
measurement
reports (MRs)
from an MS, the
BSC
preferentially
reselects the MS
to a neighboring
UTRAN FDD
cell. If the MRs
do not contain
information
about
neighboring
UTRAN FDD
cells, the BSC
reselects the MS
to a neighboring
GSM cell.
GUI Value
Range:NOTSU
PPORT(Not
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
Support),
SUPPORT
(Support)
Unit:None
Actual Value
Range:NOTSU
PPORT,
SUPPORT
Default
Value:NOTSUP
PORT(Not
Support)
HODURT3G
BSC6900
ADD
G3GNCELL
MOD
G3GNCELL
GBFD-110601
GBFD-510501
HUAWEI I
Handover
HUAWEI II
Handover
Meaning:Period
during which the
conditions for
handovers to a
better 3G cell are
met if
neighboring 3G
cells are FDD
cells. According
to the P/N rule,
handovers to a
better 3G cell
can be triggered
when the
conditions for
handovers to a
better 3G cell are
met for P out of
N MRs. This
parameter
specifies P in the
P/N rule.
GUI Value
Range:1~32
Unit:0.5s
Actual Value
Range:0.5~16
Default Value:8
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
HOECNOTH3
G
BSC6900
SET
GCELLHOUT
RANFDD
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Thresh
old for
triggering a
better cell
handover to a 3G
neighboring
cell. When
"FDDREP" in
the "SET
GCELLCCUTR
ANSYS"
command is set
to Ec/No, a
better cell
handover to a 3G
neighboring cell
can be triggered
only if the
measured Ec/No
of a 3G
neighboring cell
is greater than
the sum of this
parameter and
"ECNOOFF" in
the "ADD
G3GNCELL"
command for a
period of time.
The decibel
value
corresponding
to the parameter
values are as
follows: (For
details, see the
3GPP TS 45.008
protocol.): 0:
CPICH Ec/Io <
-24 dB 1: -24 dB
<= CPICH Ec/Io
< -23.5 dB 2:
-23.5 dB <=
CPICH Ec/Io <
-22 dB ... 47: -1
dB <= CPICH
Ec/Io < -0.5 dB
48: -0.5 dB <=
CPICH Ec/Io < 0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
dB 49: 0 dB <=
CPICH Ec/Io.
GUI Value
Range:0~49
Unit:dB
Actual Value
Range:0~49
Default Value:
35
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80
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
HOOPTSEL
BSC6900
SET
GCELLHOUT
RANFDD
GBFD-110601
HUAWEI I
Handover
Meaning:This
parameter
specifies
whether a 2G
cell or to a 3G
cell is
preferentially
selected as the
target cell for
handover. When
this parameter is
set to
Pre_2G_Cell,
the BSC
preferentially
selects a 2G
candidate cell as
the target cell for
handover. When
this parameter is
set to
Pre_3G_Cell,
the BSC
preferentially
selects a 3G
candidate cell as
the target cell for
handover. When
this parameter is
set to
Pre_2G_CellTh
res, the BSC
preferentially
selects a
neighboring 3G
cell as the
handover target
cell if the receive
level of the
neighboring 2G
cell that ranks
the first in the
candidate cell
list is equal to or
smaller than
"HO Preference
Threshold for
2G Cell".
Otherwise, the
GBFD-510501
GBFD-114301
GBFD-114302
HUAWEI II
Handover
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
BSC
preferentially
selects a
neighboring 2G
cell as the
handover target
cell.
GUI Value
Range:Pre_2G_
Cell(Preference
for 2G cell),
Pre_3G_Cell
(Preference for
3G cell),
Pre_2G_CellTh
res(Preference
2G cell by
thresh)
Unit:None
Actual Value
Range:Pre_2G_
Cell,
Pre_3G_Cell,
Pre_2G_CellTh
res
Default
Value:Pre_2G_
CellThres
(Preference 2G
cell by thresh)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
HOPRETH2G
BSC6900
SET
GCELLHOUT
RANFDD
GBFD-110601
HUAWEI I
Handover
Meaning:If the
receive level of
the neighboring
2G cell that
ranks the first in
the candidate
cell list is equal
to or smaller
than this
threshold, the
BSC
preferentially
selects a
neighboring 3G
cell as the
handover target
cell. Otherwise,
the BSC
preferentially
selects a
neighboring 2G
cell as the
handover target
cell.
GBFD-510501
GBFD-114301
GBFD-114302
HUAWEI II
Handover
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GUI Value
Range:0~63
Unit:dB
Actual Value
Range:0~63
Default Value:
25
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83
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
HORSCPTH3
G
BSC6900
SET
GCELLHOUT
RANFDD
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Level
threshold for
triggering a
better cell
handover to a 3G
neighboring
cell. A better cell
handover to a 3G
neighboring cell
can be triggered
only if the
measured RSCP
of a 3G
neighboring cell
is greater than
the sum of this
parameter and
"ECNOOFF" in
the "ADD
G3GNCELL"
command for
the 3G
neighboring cell
for a period of
time. The
decibel value
corresponding
to the parameter
values are as
follows: (For
details, see the
3GPP TS 45.008
protocol.): 0:
CPICH RSCP <
-115 dBm 1:
-115 dBm <=
CPICH RSCP <
-114 dBm 2:
-113 dBm <=
CPICH RSCP <
-113 dBm ... 61:
-55 dBm <=
CPICH RSCP <
-54 dBm 62: -54
dBm <= CPICH
RSCP < -53
dBm 63: -53
dBm <= CPICH
RSCP.
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GSM/TDSCDMA
Interoperability
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
GUI Value
Range:0~63
Unit:dB
Actual Value
Range:0~63
Default Value:
50
HOSTAT3G
BSC6900
ADD
G3GNCELL
MOD
G3GNCELL
GBFD-110601
GBFD-510501
HUAWEI I
Handover
HUAWEI II
Handover
Meaning:Period
during which
handovers to a
better 3G cell are
measured if
neighboring 3G
cells are FDD
cells. According
to the P/N rule,
handovers to a
better 3G cell
can be triggered
when the
conditions for
handovers to a
better 3G cell are
met for P out of
N MRs. This
parameter
specifies N in
the P/N rule.
GUI Value
Range:1~32
Unit:0.5s
Actual Value
Range:0.5~16
Default Value:
10
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
INPUT3GARF
CNEN
BSC6900
SET
GCELL3GAR
FCN
GBFD-511110
BSC supporting
Blind Search
Meaning:Wheth
er 3G ARFCNs
input at the cell
level is
supported. The
cells not
configured with
any neighboring
3G cells use the
3G ARFCNs
specified in the
command to
perform 2G/3G
cell reselection
after the BSC
sends the
frequency
information to
the MS through
system
information if
all the following
the conditions
are met: 1.
"INTERRATC
ELLRESELEN
" in the "SET
GCELLHOBAS
IC" command is
set to YES(Yes).
2. This
parameter is set
to YES(Yes).
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
INPUT3GARF
CNENTYPE
BSC6900
SET
G3GARFCN
GBFD-511110
BSC supporting
Blind Search
Meaning:Wheth
er a configured
3G ARFCN is an
FDD or TDD
ARFCN.
GUI Value
Range:FDD
(FDD), TDD
(TDD)
Unit:None
Actual Value
Range:FDD,
TDD
Default
Value:FDD
(FDD)
INTERRATC
ELLRESELE
N
BSC6900
SET
GCELLHOBA
SIC
GBFD-511104
GBFD-114302
GSM and
WCDMA
Traffic Steering
Based on Iur-g
GSM/TDSCDMA
Interoperability
Meaning:Wheth
er the 2G-to-3G
cell reselection
is allowed. If
this parameter is
set to YES, the
reselection from
2G cells to 3G
cells is allowed.
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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87
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
INTERRATC
ELLRESELO
PTEN
BSC6900
SET
OTHSOFTPA
RA
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Wheth
er to send the MI
system
information (SI)
after
"INTERRATC
ELLRESELEN
" is set to YES
(Yes). If this
parameter is set
to ON(On) and
"INTERRATC
ELLRESELEN
" in the "SET
GCELLHOBAS
IC" command is
set to YES(Yes),
the BSC sends
the MI SI.
GUI Value
Range:OFF
(Off), ON(On)
Unit:None
Actual Value
Range:OFF, ON
Default
Value:OFF(Off)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
INTERRATIN
BSCHOEN
BSC6900
SET
GCELLHOBA
SIC
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Wheth
er to allow a
handover from a
3G cell to a 2G
cell. If this
parameter is set
to NO, interRAT incoming
BSC handovers
fail. If the Iur-g
interface is
enabled, the
"Csishostate" IE
is DISABLED
in the common
measurement
message
reported to a
different system.
GBFD-114302
GBFD-511103
GBFD-511402
GSM/TDSCDMA
Interoperability
GSM and
WCDMA Load
Balancing
Based on Iur-g
Radio Resource
Reserved
Handover
Between GSM/
TD-SCDMA
Based on Iur-g
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
InterRATLoad
HoEcNoBand
Width
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Width
of handover
level range
[EcNo] during
the inter-RAT
hierarchical
load-based
handover. If the
cell load meets
the conditions
for a load-based
handover, all
calls in the
serving cell
initiate
handover
requests at the
same time. The
BSC uses the
hierarchical load
handover
algorithm to
control the
number of calls
to be handed
over at each
level. This
avoids a rapid
increase in the
CPU load and
occurrence of
ping-pong
handovers.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:1~49
Unit:dB
Actual Value
Range:1~49
Default Value:
20
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
InterRATLoad
HoEcNoStart
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Initial
(maximum)
EcNo value of
the inter-RAT
load-based
handover band.
If the cell load
meets the
conditions for a
load-based
handover, all
calls in the
serving cell
initiate
handover
requests at the
same time. The
BSC uses the
hierarchical load
handover
algorithm to
control the
number of calls
to be handed
over at each
level. This
avoids a rapid
increase in the
CPU load and
occurrence of
ping-pong
handovers.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:0~49
Unit:dB
Actual Value
Range:0~49
Default Value:
49
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
InterRATLoad
HoRSCPBand
Width
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Width
of load band
[RSCP] during
the inter-RAT
hierarchical
load-based
handover. If the
cell load meets
the conditions
for a load-based
handover, all
calls in the
serving cell
initiate
handover
requests at the
same time. The
BSC uses the
hierarchical load
handover
algorithm to
control the
number of calls
to be handed
over at each
level. This
avoids a rapid
increase in the
CPU load and
occurrence of
ping-pong
handovers.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:1~91
Unit:dB
Actual Value
Range:1~91
Default Value:
60
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
InterRATLoad
HoRSCPStart
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Initial
(maximum)
RSCP value of
the inter-RAT
load-based
handover band.
If the cell load
meets the
conditions for a
load-based
handover, all
calls in the
serving cell
initiate
handover
requests at the
same time. The
BSC uses the
hierarchical load
handover
algorithm to
control the
number of calls
to be handed
over at each
level. This
avoids a rapid
increase in the
CPU load and
occurrence of
ping-pong
handovers.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:0~91
Unit:dB
Actual Value
Range:0~91
Default Value:
91
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93
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
INTERRATO
UTBSCHOEN
BSC6900
SET
GCELLHOBA
SIC
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Wheth
er to allow a
handover from a
2G cell to a 3G
cell. If this
parameter is set
to NO, interRAT incoming
BSC handovers
or inter-RAT
directed retries
cannot be
initiated.
GBFD-114302
GBFD-511103
GBFD-114322
GSM/TDSCDMA
Interoperability
GSM and
WCDMA Load
Balancing
Based on Iur-g
GSM/WCDMA
Load Based
Handover
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
InterRatServic
eLoadHoSwitc
h
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Policy
for an inter-RAT
load-based
handover in
access state.
When this
parameter is set
to CnServicebased, an interRAT load-based
handover is
allowed. When
this parameter is
set to Loadbased or
Dynamic-based,
an inter-RAT
load-based
handover is
allowed only if
the uplink load
of the cell is
greater than or
equal to the
value of
"UlLdrThrd2G
Cell" or the
downlink load
of the cell is
greater than or
equal to the
value of
"DlLdrThrd2G
Cell", and
candidate cells
are filtered
based on the
load difference
between the
serving cell and
neighboring
cells.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:Servicebased(Servicebased), Loadbased(Loadbased),
Dynamic-based
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
(Dynamic
Service/Loadbased),
CnServicebased(CN
Service-based),
OFF(OFF)
Unit:None
Actual Value
Range:Servicebased, Loadbased,
Dynamic-based,
CnServicebased, OFF
Default
Value:OFF
(OFF)
IntRATLoadH
OEcNoThr
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GBFD-114322
GSM and
WCDMA Load
Balancing
Based on Iur-g
GSM/WCDMA
Load Based
Handover
Meaning:Minim
um Ec/No value
of a 3G cell
during the loadbased GSM-toUMTS
handover. If the
UMTS level
measured by the
MS is less than
or equal to the
value of this
parameter, the
BSC cannot
initiate a loadbased GSM-toUMTS
handover.
GUI Value
Range:0~49
Unit:dB
Actual Value
Range:0~49
Default Value:
25
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
IntRATLoadHORSCPThr
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GSM and
WCDMA Load
Balancing
Based on Iur-g
Meaning:Minim
um RSCP value
of a UMTS cell
during the loadbased GSM-toUMTS
handover. If the
UMTS level
measured by the
MS is less than
or equal to the
value of this
parameter, the
BSC cannot
initiate a loadbased GSM-toUMTS
handover.
GBFD-114322
GSM/WCDMA
Load Based
Handover
GUI Value
Range:0~91
Unit:dB
Actual Value
Range:0~91
Default Value:
30
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
LOADRESEL
ALLOW
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Wheth
er to allow the
cell load
reselection.
Load reselection
refers to a
reselection
triggered when
both the
following
conditions are
met: 1. The
uplink or
downlink load
of a serving cell
is greater than
"LOADRESELSTARTTHRSH
". 2. The
receiving level
of the serving
cell is smaller
than
"LOADRESEL
MAXRXLEV".
If this parameter
is set to
PERMIT and
"NC2LoadResel
" is set to
SUPPORT, the
load of the target
cell is used as a
parameter in the
algorithm for
NC2 cell
reselection.
GBFD-511304
GBFD-511307
PS Handover
Between GSM
and LTE Based
on Cell Load
eNC2 Between
GSM and LTE
GUI Value
Range:FORBID
(Forbid),
PERMIT
(Permit)
Unit:None
Actual Value
Range:FORBID
, PERMIT
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
Default
Value:PERMIT
(Permit)
LOADRESEL
MAXRXLEV
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
GBFD-511304
NetworkControlled Cell
Reselection
(NC2)
PS Handover
Between GSM
and LTE Based
on Cell Load
Meaning:Thresh
old for allowing
the MS to
reselect a cell
during load
reelection.
When the
receive level of
the serving cell
is lower than this
threshold, the
load reselection
is triggered.
GUI Value
Range:0~63
Unit:None
Actual Value
Range:0~63
Default Value:
40
LOADRESELSTARTTHRS
H
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
GBFD-511304
NetworkControlled Cell
Reselection
(NC2)
PS Handover
Between GSM
and LTE Based
on Cell Load
Meaning:When
the uplink load
or downlink
load of the cell
exceeds this
threshold, the
load reselection
decision is
made.
GUI Value
Range:0~100
Unit:%
Actual Value
Range:0~100
Default Value:
85
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
MINACCRXL
EV
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Minim
um receive level
for a neighbor
cell to become a
candidate cell
during cell
reselection.
When the
receive level of
the serving cell
is lower than the
value of this
parameter, it
indicates that the
normal cell
reselection level
is bad. In this
case, the
parameter value
is used for the
calculation of
the times of the
occurrence of
bad normal cell
reselection
level.
GBFD-511302
GBFD-511303
GBFD-511304
GBFD-511306
PS Handover
Between GSM
and LTE Based
on Coverage
PS Handover
Between GSM
and LTE Based
on Quality
PS Handover
Between GSM
and LTE Based
on Cell Load
GSM/LTE
Service Based
PS Handover
GUI Value
Range:0~63
Unit:None
Actual Value
Range:0~63
Default Value:
15
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
NACCSPT
BSC6900
SET
GCELLGPRS
GBFD-116301
Network
Assisted Cell
Change
(NACC)
Meaning:Wheth
er to support
Network
Assisted Cell
Change
(NACC). NACC
is used in the
network control
mode NC0 or
NC2. When an
MS is in packet
transfer mode,
the NACC
enables the
network to
notify the MS in
advance of the
system
information
about
neighboring
cells. This
accelerates the
PS service
access in the
target cell and
shortens the PS
service
interruption
during cell
reselection.
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
NC2LoadResel
BSC6900
SET
BSCPSSOFTP
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Wheth
er to involve the
load of the target
cell in the
algorithm for
NC2 cell
reselection. If
this parameter is
set to Support,
the load of the
target cell is
involved in the
algorithm for
NC2 cell
reselection.
GUI Value
Range:NotSupp
ort(Not
Support),
Support
(Support)
Unit:None
Actual Value
Range:NOTSU
PPORT,
SUPPORT
Default
Value:NOTSUP
PORT
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
NC2SPT
BSC6900
SET
GCELLGPRS
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Wheth
er to support
network control
2 (NC2). In NC2
mode, an MS
sends the BSC
measurement
reports
containing
information
about the
serving cell and
neighboring
cells, and the
network
controls cell
reselection for
the MS.
GBFD-511307
GBFD-511310
eNC2 Between
GSM and LTE
Multi
Technology
Neighbour Cell
Based Handover
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
NCO
BSC6900
SET
GCELLPSBAS
E
GBFD-119107
Networking
Control Mode
Meaning:Netwo
rk control mode
for cell
reselection of
the MS. There
are three modes.
NC0: normal
MS control. The
MS shall
perform
autonomous cell
re-selection.
NC1: MS
control with
measurement
reports. The MS
shall send
measurement
reports to the
network and the
MS shall
perform
autonomous cell
re-selection.
NC2: network
control. The MS
shall send
measurement
reports to the
network. The
MS shall only
perform
autonomous cell
re-selection
when the
reselection is
triggered by a
downlink
signaling failure
or a random
access failure.
When this
parameter is set
to NC2 and
"Support NC2"
in "SET
GCELLGPRS"
is set to "YES",
the network side
GBFD-114302
GBFD-111101
GBFD-511307
GBFD-511310
GSM/TDSCDMA
Interoperability
System
Information
Sending
eNC2 Between
GSM and LTE
Multi
Technology
Neighbour Cell
Based Handover
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
can control the
cell reselection
for the MS.
GUI Value
Range:NC0
(NC0), NC1
(NC1), NC2
(NC2)
Unit:None
Actual Value
Range:NC0,
NC1, NC2
Default
Value:NC0
(NC0)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
NORMALRES
ELALLOW
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Wheth
er to allow a
normal cell
reselection. A
normal cell
reselection
refers to a cell
reselection
triggered when
both the
following
conditions are
met: 1. The
consecutively
accumulated
number of times
for measuring
the serving cell
receive level in
the Packet
Measurement
Report message
is greater than or
equal to
"RESELWATC
HPERIOD". 2.
The number of
times that the
serving cell
receive level is
lower than
"MINACCRXL
EV" is greater
than
"CELLRXQUA
LWORSENRATIOTHRSH". If
this parameter is
set to PERMIT
and
"NC2LoadResel
" is set to
SUPPORT, the
load of the target
cell is used as a
parameter in the
algorithm for
NC2 cell
reselection.
GBFD-511302
GBFD-511307
PS Handover
Between GSM
and LTE Based
on Coverage
eNC2 Between
GSM and LTE
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
GUI Value
Range:FORBID
(Forbid),
PERMIT
(Permit)
Unit:None
Actual Value
Range:FORBID
, PERMIT
Default
Value:PERMIT
(Permit)
OutSysLoadHo
En
BSC6900
SET
GCELLHOIN
TERRATLDB
GBFD-511103
GBFD-114322
GSM and
WCDMA Load
Balancing
Based on Iur-g
GSM/WCDMA
Load Based
Handover
Meaning:This
parameter
specifies
whether to allow
the inter-RAT
load handover in
connection
mode (after the
assignment is
complete).
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PENALTYRX
LEV
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:When
the cell
reselection
failure message
is received or the
load cell
reselection is
initiated, the
"Cell Penalty
Level" is
subtracted from
the receive level
of the target cell
to avoid that cell
reselection
failure occurs
repeatedly or
that multiple
MSs are
reselected to the
same target cell.
This parameter
is valid only
within "Cell
Penalty
Duration".
GBFD-511302
GBFD-511303
GBFD-511304
GBFD-511306
GBFD-511310
PS Handover
Between GSM
and LTE Based
on Coverage
PS Handover
Between GSM
and LTE Based
on Quality
PS Handover
Between GSM
and LTE Based
on Cell Load
GSM/LTE
Service Based
PS Handover
Multi
Technology
Neighbour Cell
Based Handover
GUI Value
Range:0~63
Unit:None
Actual Value
Range:0~63
Default Value:
30
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PFCSUP
BSC6900
ADD NSE
GBFD-119901
MOD NSE
GBFD-511310
Streaming QoS
(GBR)
Meaning:Wheth
er the NSE
supports the
Packet Flow
Context (PFC)
procedure that
can improve
Quality of
Service (QoS) of
packet services.
In SGSN Pool
scenario, the
PFC procedure
will take effect
when the
following
conditions are
met: All the
NSEs to which
all the PTP
BVCs in the cell
belong support
PFC (that is,
"PFC Support"
is set to YES).
The SGSN
supports PFC.
The "Support
GBR QoS"
parameter in the
"SET
GCELLPSOTH
ERPARA"
command is set
to YES.
Multi
Technology
Neighbour Cell
Based Handover
GUI Value
Range:NO(No
Support), YES
(Support)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No
Support)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PsBestFddCell
Num
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Numb
er of
neighboring
UTRAN FDD
cells contained
in a Packet
Measurement
Report message.
GUI Value
Range:0~3
Unit:None
Actual Value
Range:0~3
Default Value:1
PsFddCellRpt
Off
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Offset
for the reported
receive level of a
neighboring
UTRAN FDD
cell The value of
this parameter is
added to the
receive level of
each of
neighboring
UTRAN FDD
cells to prioritize
them. The
mapping
between the
parameter
values and the
decibel values is
as follows: 0: 0
dB 1: 6 dB ... 7:
42 dB
GUI Value
Range:0~7
Unit:6dB
Actual Value
Range:0~42
Default Value:0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PsFddCellRpt
Thd
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Thresh
old for reporting
a neighboring
UTRAN FDD
cell A
neighboring
UTRAN FDD
cell is listed in
the
measurement
report only if the
receive level of
the cell reaches
or exceeds this
threshold. The
mapping
between the
parameter
values and the
decibel values is
as follows: 0: 0
dB 1: 6 dB ... 6:
36 dB 7: positive
infinity
GUI Value
Range:0~7
Unit:6dB
Actual Value
Range:0~36,
positive infinity
Default Value:0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PsFddRptThr2
Ecno
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Minim
um Ec/No
Threshold 2 for
reporting MRs
of PS FDD
neighboring
cells.When
UTRAN FDD
neighboring
cells are
configured, the
BSC fills the
value of this
parameter in the
information
element (IE)
FDD_REPORT
ING_THRESH
OLD_2 in the
Packet
Measurement
Order message
that is sent to
GSM/UMTS
dual-mode MSs
in packet
transfer mode if
"FDDREP" in
the "SET
GCELLCCUTR
ANSYS"
command is set
to RSCP
(RSCP).
GUI Value
Range:0~49
Unit:None
Actual Value
Range:0~49
Default Value:0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PsFddRptThr2
Rscp
BSC6900
SET
GCELLRESE
LUTRANFDD
GBFD-114101
GPRS
Meaning:Minim
um RSCP
threshold 2 for
reporting MRs
of PS FDD
neighboring
cells.When
UTRAN FDD
neighboring
cells are
configured, the
BSC fills the
value of this
parameter in the
IE
FDD_REPORT
ING_THRESH
OLD_2 in the
Packet
Measurement
Order message
that is sent to
GSM/UMTS
dual-mode MSs
in packet
transfer mode if
"FDDREP" in
the "SET
GCELLCCUTR
ANSYS"
command is set
to EcNo(Ec/
No).
GUI Value
Range:0~63
Unit:None
Actual Value
Range:0~63
Default Value:0
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
PSHOSUP
BSC6900
ADD NSE
GBFD-119502
PS Handover
Meaning:Wheth
er to support PS
Handover(PS
HO). The PS HO
is used to reduce
the interval of
the cell
reselection of
the MS.
MOD NSE
GUI Value
Range:NO(No
Support), YES
(Support)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No
Support)
QCI
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GBFD-114302
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
Meaning:This
parameter
specifies the
threshold of the
signal level for
cell reselection
in connection
mode before
""Qsearch C"" is
obtained.
GUI Value
Range:Use_Qse
arch_I(Use
Qsearch_I),
Always
(Always)
Unit:None
Actual Value
Range:Use_Qse
arch_I, Always
Default
Value:Use_Qse
arch_I(Use
Qsearch_I)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
QI
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:In idle
mode, if the
signal level of
the serving cell
is below [0, 7] or
above [8, 15],
the MS starts to
search for 3G
cells. For
example, if this
parameter is set
to 5 and if the
signal level of
the serving cell
is lower than 5,
the MS starts to
search for 3G
cells; if this
parameter is set
to 10 and if the
signal level of
the serving cell
is above 10, then
the MS starts to
search for 3G
cells. The values
of this parameter
correspond to
the following
decibel values:
0: -98 dBm 1:
-94 dBm 2: -90
dBm 3: -86 dBm
4: -82 dBm 5:
-78 dBm 6: -74
dBm 7:
(always), that is,
the MS keeps
searching for 3G
cells 8: -78 dBm
9: -74 dBm 10:
-70 dBm 11: -66
dBm 12: -62
dBm 13: -58
dBm 14: -54
dBm 15:
Positive infinity
(never), that is,
the MS does not
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GBFD-114302
GSM/TDSCDMA
Interoperability
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
search for 3G
cells.
GUI Value
Range:0~15
Unit:None
Actual Value
Range:-98, -94,
-90, -86, -82,
-78, -74,
(always), -78,
-74, -70, -66,
-62, -58, -54,
Positive infinity
(never)
Default Value:7
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
QP
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:In
packet transfer
mode, if the
signal level of
the serving cell
is below [0, 7] or
above [8, 15],
the MS starts to
search for 3G
cells. For
example, if this
parameter is set
to 5 and if the
signal level of
the serving cell
is lower than 5,
the MS starts to
search for 3G
cells; if this
parameter is set
to 10 and if the
signal level of
the serving cell
is above 10, then
the MS starts to
search for 3G
cells. This
parameter is
valid only if the
BSC sends
GPRS cell
reselection
parameters to an
MS using a
Packet Cell
Change Order or
Packet
Measurement
Order message.
The values of
this parameter
correspond to
the following
decibel values:
0: -98 dBm 1:
-94 dBm ... 6:
-74 dBm 7:
(always) 8: -78
dBm 9: -74
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GBFD-114302
GSM/TDSCDMA
Interoperability
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
dBm ... 14: -54
dBm 15:
Positive infinity
(never)
GUI Value
Range:0~15
Unit:None
Actual Value
Range:-98, -94,
-90, -86, -82,
-78, -74,
(always), -78,
-74, -70, -66,
-62, -58, -54,
Positive infinity
(never)
Default Value:7
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
QSEARCHC
BSC6900
SET
GCELLCCUT
RANSYS
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:In
connection
mode, if the
signal level is
below [0-7] or
above [8-15],
the MS starts to
search for 3G
cells. For
example, if this
parameter is set
to 5 and if the
signal level of
the serving cell
is lower than 5,
the MS starts to
search for 3G
cells; if this
parameter is set
to 10 and if the
signal level of
the serving cell
is above 10, then
the MS starts to
search for 3G
cells. 0: -98 dBm
1: -94 dBm ... 6:
-74 dBm 7:
(always) 8: -78
dBm 9: -74
dBm ... 14: -54
dBm 15:
Positive infinity
(never)
GBFD-114302
GSM/TDSCDMA
Interoperability
GUI Value
Range:0~15
Unit:None
Actual Value
Range:-98, -94,
-90, -86, -82,
-78, -74,
(always), -78,
-74, -70, -66,
-62, -58, -54,
Positive infinity
(never)
Default Value:7
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
RESELHYST
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Indicat
ing that during
cell reselection,
the level of the
target cell
should meet the
following
condition: Level
of target cell >
[MAX (level of
serving cell,
"Cell
Reselection
Level
Threshold") +
"Cell
Reselection
Hysteresis"]. In
this way, pingpong handovers
do not occur.
GBFD-511302
GBFD-511303
GBFD-511304
GBFD-511306
GBFD-511310
PS Handover
Between GSM
and LTE Based
on Coverage
PS Handover
Between GSM
and LTE Based
on Quality
PS Handover
Between GSM
and LTE Based
on Cell Load
GSM/LTE
Service Based
PS Handover
Multi
Technology
Neighbour Cell
Based Handover
GUI Value
Range:0~63
Unit:None
Actual Value
Range:0~63
Default Value:6
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
RESELWATC
HPERIOD
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:The
number of times
that the
receiving level
of a cell is
continuously
measured in the
Packet
Measurement
Report. When
the statistical
value is greater
than or equal to
the value of this
parameter, the
normal
reselection
decision is
made.
GBFD-511302
PS Handover
Between GSM
and LTE Based
on Coverage
GUI Value
Range:1~32
Unit:None
Actual Value
Range:1~32
Default Value:
10
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
RESELWORS
ENLEVTHRS
H
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:If the
number of times
when the receive
level of the
serving cell
within "Normal
Cell Reselection
Watch Period" is
lower than "Cell
Reselection
Level
Threshold" is
greater than the
value of this
parameter, the
normal cell
reselection is
triggered.
GBFD-511302
PS Handover
Between GSM
and LTE Based
on Coverage
GUI Value
Range:1~32
Unit:None
Actual Value
Range:1~32
Default Value:1
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
RIMSUP
BSC6900
ADD NSE
GBFD-116301
MOD NSE
GBFD-511308
Network
Assisted Cell
Change
(NACC)
Meaning:Wheth
er to support
RAN
information
management
(RIM). In the
RIM procedure,
RANs (Radio
Access
Network) can
exchange
messages
through the core
network.
eNACC
Between GSM
and LTE
GUI Value
Range:NO(No
Support), YES
(Support)
Unit:None
Actual Value
Range:NO, YES
Default
Value:NO(No
Support)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
RSCPOFF
BSC6900
ADD
G3GNCELL
GBFD-114301
GSM/WCDMA
Interoperability
Meaning:Offset
in the RSCP of a
3G neighboring
cell. The RSCP
reported by the
MS minus the
value of this
parameter is
used as the level
in the K criteria
for handover
decisions. The
level is used for
handovers from
2G networks to
3G networks.
The decibel
value
corresponding
to the parameter
values are as
follows: (For
details, see the
3GPP TS 45.008
protocol.): 0:
CPICH RSCP <
-115 dBm 1:
-115 dBm <=
CPICH RSCP <
-114 dBm 2:
-113 dBm <=
CPICH RSCP <
-113 dBm ... 61:
-55 dBm <=
CPICH RSCP <
-54 dBm 62: -54
dBm <= CPICH
RSCP < -53
dBm 63: -53
dBm <= CPICH
RSCP.
MOD
G3GNCELL
GBFD-114302
GSM/TDSCDMA
Interoperability
GUI Value
Range:0~63
Unit:dB
Actual Value
Range:0~63
Default Value:3
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
Send2QuterFla
g
BSC6900
SET
OTHSOFTPA
RA
GBFD-111101
System
Information
Sending
Meaning:This
parameter
specifies
whether the SI
Type 3 message
contains the
2QUATER
indicator.
GBFD-114302
GSM/TDSCDMA
Interoperability
GUI Value
Range:NO(No),
YES(Yes)
Unit:None
Actual Value
Range:NO, YES
Default
Value:YES
(Yes)
SPTINTERRA
TINBSCPSHO
BSC6900
SET
GCELLGPRS
GBFD-119502
PS Handover
Meaning:Wheth
er to support In
Inter-RAT Intercell PS
Handover. The
MS in the
UMTS cell can
be handed over
to the BSC local
cell through PS
handover
algorithm.
GUI Value
Range:UNSUP
PORT(Not
Support),
SUPPORT
(Support)
Unit:None
Actual Value
Range:UNSUP
PORT,
SUPPORT
Default
Value:UNSUPP
ORT(Not
Support)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
SPTINTERRA
TOUTBSCPS
HO
BSC6900
SET
GCELLGPRS
GBFD-119502
PS Handover
Meaning:Wheth
er support Out
Inter-RAT InterCell PS
Handover. The
MS in the BSC
local cell can be
handed over to
the UMTS cell
through PS
handover
algorithm.
GUI Value
Range:UNSUP
PORT(Not
Support),
SUPPORT
(Support)
Unit:None
Actual Value
Range:UNSUP
PORT,
SUPPORT
Default
Value:UNSUPP
ORT(Not
Support)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
SYSFLOWLE
V
BSC6900
SET
GCELLHOAD
GBFD-110601
HUAWEI I
Handover
Meaning:Syste
m flux
thresholds
correspond to
the system flux
obtained based
on message
packets, CPU
load, and FID
queuing load.
The system flux
level is the
current flux
control level of
the system.
0-11: There are
12 flow control
levels. Where, 0
indicates the
lowest level and
11 indicates the
highest level. A
load handover is
allowed only
when the system
flux is lower
than the value of
this parameter.
The handover
performed over
the maximum
threshold has
tremendous
impacts on the
system.
Therefore, this
parameter
should not be set
to a higher
value. 1) The
flow control
level algorithm
for the assigned
system
messages:
[(Average
Message Usage
- Inner Flow
Control Discard
Issue 04 (2013-04-12)
GBFD-510501
HUAWEI II
Handover
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
Begin
Threshold)/
(Inner Flow
Control Discard
All Threshold Inner Flow
Control Discard
Begin
Threshold) x
100]/10+1
(round-down for
division
operation). If the
value is smaller
than Inner Flow
Control Discard
Begin
Threshold,
Level 0 is used.
If the value is
equal to or
greater than
Inner Flow
Control Discard
Begin
Threshold, the
level is
calculated. The
value range is
from 0 to 11. 2)
Flow control
threshold for the
CPU to start to
discard the
channel access
messages and
paging
messages: 80%
Flow control
threshold for the
CPU to discard
all channel
access messages
and paging
messages: 100%
CPU usage
smaller than
80%
corresponds to
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
level 0. CPU
usage equal to or
greater than
CPU flow
control
threshold 80%
corresponds to
level 2. An
increase of 5%
means an
increase of 2
levels. Level 10
is the highest.
The level value
can be 0, 2, 4, 6,
8, and 10.
GUI Value
Range:0;8~11
Unit:None
Actual Value
Range:0, 8~11
Default Value:
10
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
TrafficReselAllow
BSC6900
SET
GCELLNC2P
ARA
GBFD-511306
GSM/LTE
Service Based
PS Handover
Meaning:Wheth
er to allow the
cell service
reselection.
When this
parameter is set
to "PERMIT",
the Radio
Access
Technology
(RAT) of the
candidate cell is
considered in
the algorithm for
cell service
reselection.
GBFD-511307
eNC2 Between
GSM and LTE
GUI Value
Range:FORBID
(Forbid),
PERMIT
(Permit)
Unit:None
Actual Value
Range:FORBID
, PERMIT
Default
Value:PERMIT
(Permit)
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
TRIGTHRES
BSC6900
SET
GCELLHOAD
GBFD-110601
HUAWEI I
Handover
Meaning:This
parameter is
used only for
decisions on
load-based
handovers at the
same layer when
"LOADHOHY
STADAPEN" is
set to YES(Yes).
If the traffic load
in this cell is
higher than or
equal to the
threshold
specified by this
parameter, a
load-based
handover is
triggered. If this
parameter is set
to 1, load-based
handovers at the
same layer are
not allowed.
GBFD-510501
HUAWEI II
Handover
GUI Value
Range:0~100
Unit:None
Actual Value
Range:0~100
Default Value:
90
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131
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
11 Parameters
Parameter ID
NE
MML
Command
Feature ID
Feature Name
Description
URGENTRES
ELALLOW
BSC6900
SET
GCELLNC2P
ARA
GBFD-116201
NetworkControlled Cell
Reselection
(NC2)
Meaning:Wheth
er to allow an
urgent cell
reselection. An
urgent cell
reselection
refers to a cell
reselection
triggered when
both the
following
conditions are
met: 1. The
number of times
for receiving a
transmission
quality report in
the Packet
Downlink Ack/
Nack message is
greater than or
equal to
"MSRXQUALSTATTHRSH".
2. The number
of times that the
MS downlink
transmission
quality is lower
than the MS
transmission
quality
threshold is
greater than or
equal to
"CELLRXQUA
LWORSENRATIOTHRSH". If
this parameter is
set to PERMIT
and
"NC2LoadResel
" is set to
SUPPORT, the
load of the
candidate target
cell is used as a
parameter in the
algorithm for
GBFD-511303
GBFD-511307
PS Handover
Between GSM
and LTE Based
on Quality
eNC2 Between
GSM and LTE
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GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
Parameter ID
NE
MML
Command
11 Parameters
Feature ID
Feature Name
Description
NC2 urgent cell
reselection.
GUI Value
Range:FORBID
(Forbid),
PERMIT
(Permit)
Unit:None
Actual Value
Range:FORBID
, PERMIT
Default
Value:PERMIT
(Permit)
Issue 04 (2013-04-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
133
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
12
Counters
Table 12-1 Counter description
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278082417
CELL.INTERR
AN.INCELL.H
O.REQ.SD
H3600:Incomin
g Inter-RAT
Inter-Cell
Handover
Requests
(SDCCH)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.INCELL.H
O.REQ.TCH
H3609:Incomin
g Inter-RAT
Inter-Cell
Handover
Requests (TCH)
BSC6900
CELL.INTERR
AN.INCELL.H
O.REQ.ACK.S
D
H3610:Incomin
g Inter-RAT
Inter-Cell
Handover
Responses
(SDCCH)
BSC6900
CELL.INTERR
AN.INCELL.H
O.REQ.ACK.T
CHF
H3617:Incomin
g Inter-RAT
Inter-Cell
Handover
Responses
(TCHF)
BSC6900
CELL.INTERR
AN.INCELL.H
O.REQ.ACK.T
CHH
H3618:Incomin
g Inter-RAT
Inter-Cell
Handover
Responses
(TCHH)
BSC6900
1278082418
1278082419
1278082420
1278082421
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
134
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278082422
CELL.INTERR
AN.INCELL.H
O.FAIL.SD
H3620:Failed
Incoming InterRAT Inter-Cell
Handovers
(SDCCH)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.INCELL.H
O.FAIL.TCHF
H3627:Failed
Incoming InterRAT Inter-Cell
Handovers
(TCHF)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.TCHH
H3628:Failed
Incoming InterRAT Inter-Cell
Handovers
(TCHH)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.INVAL
ID.CONTENTS
H362J:Failed
Incoming InterRAT Inter-Cell
Handovers
(Invalid
Message)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.CONG.
SD
H3620A:Failed
Incoming InterRAT Inter-Cell
Handovers (No
Channel
Available)
(SDCCH)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.CONG.
TCH
H3629A:Failed
Incoming InterRAT Inter-Cell
Handovers (No
Channel
Available)
(TCH)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.NO.CI
C
H362E:Failed
Incoming InterRAT Inter-Cell
Handovers (CIC
Unavailable)
BSC6900
1278082423
1278082424
1278082425
1278082426
1278082427
1278082428
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
135
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278082429
CELL.INTERR
AN.INCELL.H
O.FAIL.CIC.A
LLOC
H362F:Failed
Incoming InterRAT Inter-Cell
Handovers (CIC
Allocated)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.INCELL.H
O.FAIL.APPLY
.TRSL.FAIL
H362B:Failed
Incoming InterRAT Inter-Cell
Handovers
(Terrestrial
Resource
Request Failed)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.MSC.C
LR.CMD
H362H:Failed
Incoming InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.EXP.S
D
H3620C:Failed
Incoming InterRAT Inter-Cell
Handovers
(Timer Expired)
(SDCCH)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.EXP.T
CH.SIG
H3629Cb:Faile
d Incoming
Inter-RAT InterCell Handovers
(Timer Expired)
(TCH)
(Signaling
Channel)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.EXP.T
CH.TRAF.CH
H3629Ca:Failed
Incoming InterRAT Inter-Cell
Handovers
(Timer Expired)
(TCH) (Traffic
Channel)
BSC6900
CELL.INTERR
AN.INCELL.H
O.REQ
CH360:Incomin
g Inter-RAT
Inter-Cell
Handover
Requests
BSC6900
1278082430
1278082431
1278082432
1278082433
1278082434
1278082435
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
136
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278082436
CELL.INTERR
AN.INCELL.H
O.SUCC
CH363:Success
ful Incoming
Inter-RAT InterCell Handovers
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.INCELL.H
O.SUCC.RATE
TH363:Success
Rate of
Incoming InterRAT Inter-Cell
Handover
BSC6900
CELL.INTERR
AN.INCELL.H
O.REQ.ACK
CH361:Incomin
g Inter-RAT
Inter-Cell
Handover
Responses
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL
H362:Failed
Incoming InterRAT Inter-Cell
Handovers
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.EXP
H362C:Failed
Incoming InterRAT Inter-Cell
Handovers
(Timer Expired)
BSC6900
CELL.INTERR
AN.INCELL.H
O.FAIL.NO.SP
EECH.VER
H362L:Failed
Incoming InterRAT Inter-Cell
Handovers
(Requested
Speech Version
Unavailable)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.REQ.NOT.I
NCLUDE.DR.S
D
H3500:Outgoin
g Inter-RAT
Inter-Cell
Handover
Requests
(SDCCH)
(Excluding
Directed Retry)
BSC6900
1278082437
1278082438
1278082439
1278082440
1278082441
1278083417
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
137
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083418
CELL.INTERR
AN.OUTCELL.
HO.REQ.TCHF
H3507:Outgoin
g Inter-RAT
Inter-Cell
Handover
Requests
(TCHF)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.REQ.TCH
H
H3508:Outgoin
g Inter-RAT
Inter-Cell
Handover
Requests
(TCHH)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.CMD.NOT.
INCLUDE.DR.
SD
H3510:Outgoin
g Inter-RAT
Inter-Cell
Handover
Commands
(SDCCH)
(Excluding
Directed Retry)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.CMD.TCH
F
H3517:Outgoin
g Inter-RAT
Inter-Cell
Handover
Commands
(TCHF)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.CMD.TCH
H
H3518:Outgoin
g Inter-RAT
Inter-Cell
Handover
Commands
(TCHH)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.NOT.
INCLUDE.DR.
SD
H3520:Failed
Outgoing InterRAT Inter-Cell
Handovers
(SDCCH)
(Excluding
Directed Retry)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.TCH
F
H3527:Failed
Outgoing InterRAT Inter-Cell
Handovers
(TCHF)
BSC6900
1278083419
1278083420
1278083421
1278083422
1278083423
1278083424
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
138
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083425
CELL.INTERR
AN.OUTCELL.
HO.FAIL.TCH
H
H3528:Failed
Outgoing InterRAT Inter-Cell
Handovers
(TCHH)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.ABNORM.
REL.UNS
H352Da:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Abnormal
Release
BSC6900
1278083426
GBFD-114302
GBFD-114301
GBFD-114302
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
Unspecified)
1278083427
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.ABNORM.
REL.CHN
H352Db:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Abnormal
Release
BSC6900
GBFD-114301
GBFD-114302
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
Channel
Unacceptable)
1278083428
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.ABNORM.
REL.T.E
H352Dc:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Abnormal
Release
BSC6900
GBFD-114301
GBFD-114302
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
Timer Expired)
Issue 04 (2013-04-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
139
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083429
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.ABNORM.
REL.NO.ACT
H352Dd:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Abnormal
Release
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
GBFD-114302
GSM/TDSCDMA
Interoperability
No Activity on
the Radio Path)
1278083430
1278083431
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.PREEMPT.
RLS
H352De:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Preemptive
Release)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.HO.TA
H352Df:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Handover
Failed
BSC6900
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
Timing
Advance out of
Range)
1278083432
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.NO.CH.MO
DE
Issue 04 (2013-04-12)
H352Dg:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Channel Mode
Unavailable)
BSC6900
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
140
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083433
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.FREQ
H352Dh:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Frequency
Unavailable)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.CALL.CLR
H352Di:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels) (Call
Already
Cleared)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.SEMANT
H352Dj:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Semantically
Incorrect
Message)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.INV.MAN
H352Dk:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Invalid
Mandatory
Information)
BSC6900
1278083434
1278083435
1278083436
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
141
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083437
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.MSG.TYPE.
NEXISTENT
H352Dl:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Message Type
Non-existent or
Not
Implemented)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.MSG.TYPE.
NOT.COMPAT
IBLE
H352Dm:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Message Type
Not Compatible
with Protocol
State)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.CONDITIO
N.IE.ERR
H352Dn:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Conditional IE
Error)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.NO.CA
H352Do:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels) (No
Cell Allocation
Available)
BSC6900
1278083438
1278083439
1278083440
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
142
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083441
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.PROTOCL
H352Dp:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Protocol Error
Unspecified)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MS.R
PT.OTHER
H352Dq:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
(Other Causes)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.OM.INTER
VENTION
H352Ka:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected) (OM
Intervention)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.EQUIP.FAI
L
H352Kb:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Equipment
Failure)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.NO.RADIO.
RES
H352Kc:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected) (No
Radio Resource
Available)
BSC6900
1278083442
1278083443
1278083444
1278083445
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
143
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083446
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.REQ.NO.TE
R.RES
H352Kd:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Requested
Terrestrial
Resource
Unavailable)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.BSS.NOT.E
QUIP
H352Ke:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected) (BSS
not Equipped)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.INVAILD.C
ELL
H352Kf:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Invalid Cell)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.REQ.TRAN
SC.UNAIVL
H352Kg:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Requested
Transcoding/
Rate Adaption
Unavailable)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.CIR.POOL.
MISMATCH
H352Kh:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Circuit Pool
Mismatch)
BSC6900
1278083447
1278083448
1278083449
1278083450
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
144
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083451
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.REQ.NO.SV
H352Ki:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Requested
Speech Version
Unavailable)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.CIPH.ALG.
NOT.SUPT
H352Kj:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Ciphering
Algorithm not
Supported)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.TER.CIR.A
LRDY.ALLOC
H352Kk:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Terrestrial
circuit already
allocated)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.INVAILD.M
SG
H352Kl:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Invalid
Message)
BSC6900
1278083452
1278083453
1278083454
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
145
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083455
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.PROTOCOL
.ERR
H352Km:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
(Protocol Error
between BSS
and MSC)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.HO.R
EJ.OTHER
H352Kn:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected) (Other
Causes)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.RADIO.I
NTF.MSG.FAI
L
H352Ha:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
(Radio Interface
Message
Failure)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.RADIO.I
NTF.FAIL
H352Hb:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
(Radio Interface
Failure)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.OM.INT
ERVENTION
H352Hc:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC) (OM
Intervention)
BSC6900
1278083456
1278083457
1278083458
1278083459
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
146
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083460
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.EQUIP.F
AIL
H352Hd:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
(Equipment
Failure)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.PREEMP
TION
H352He:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
(Preemption)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.INVALI
D.MSG
H352Hf:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
(Invalid
Message)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.PROTOC
OL.ERR
H352Hg:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
(Protocol Error
between BSS
and MSC)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.CLR.
CMD.OTHER
H352Hh:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC) (Other
Causes)
BSC6900
1278083461
1278083462
1278083463
1278083464
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
147
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083465
CELL.INTERR
AN.OUTCELL.
HO.FAIL.A.IN
TERF.FAIL
H352G:Failed
Outgoing InterRAT Inter-Cell
Handovers (A
Interface
Failure)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.T7.E
XP
H352L:Failed
Outgoing InterRAT Inter-Cell
Handovers (T7
Expired)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.T8.E
XP
H352C:Failed
Outgoing InterRAT Inter-Cell
Handovers (T8
Expired)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.REQ
CH350:Outgoin
g Inter-RAT
Inter-Cell
Handover
Requests
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.SUCC
CH353:Success
ful Outgoing
Inter-RAT InterCell Handovers
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.SUCC.RAT
E
TH353:Success
Rate of
Outgoing InterRAT Inter-Cell
Handover
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.CMD
CH351:Outgoin
g Inter-RAT
Inter-Cell
Handover
Commands
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL
CH352:Failed
Outgoing InterRAT Inter-Cell
Handovers
BSC6900
1278083466
1278083467
1278083468
1278083469
1278083470
1278083471
1278083472
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
148
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083473
CELL.INTERR
AN.OUTCELL.
HO.FAIL.REC
ONN.SUCC
CH352D:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Reconnection
to Old
Channels)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.FAIL.REQ.
REJ
CH352K:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Handover
Request
Rejected)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.MSC.
CLR
CH352H:Failed
Outgoing InterRAT Inter-Cell
Handovers
(Clear
Commands Sent
By MSC)
BSC6900
1278083486
CELL.INTERR
AN.OUTCELL.
HO.REQ.LOA
D.BASED.HO
H350G:Outgoin
g Inter-RAT
Inter-Cell
Handover
Requests(load
based handover)
BSC6900
GBFD-114322
GSM/WCDMA
Load Based
Handover
1278083487
CELL.INTERR
AN.OUTCELL.
HO.CMD.LOA
D.BASED.HO
H351G:Outgoin
g Inter-RAT
Inter-Cell
Handover
Commands(load
based handover)
BSC6900
GBFD-114322
GSM/WCDMA
Load Based
Handover
1278083488
CELL.INTERR
AN.OUTCELL.
HO.FAIL.TAR
GETCELL.TR
AFLOAD.HIG
HER
H352N:Number
of Failed
Outgoing InterRAT Inter-Cell
Handovers
(Target Cell
Traffic Load
Higher)
BSC6900
GBFD-114322
GSM/WCDMA
Load Based
Handover
1278083474
1278083475
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
149
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278083489
CELL.INTERR
AN.OUTCELL.
HO.REQ.SERV
ICE.BASED.H
O
H350M:Outgoi
ng Inter-RAT
Inter-Cell
Handover
Requests
(service based
handover)
BSC6900
GBFD-114321
GSM/WCDMA
Service Based
Handover
1278083490
CELL.INTERR
AN.OUTCELL.
HO.CMD.SER
VICE.BASED.
HO
H351M:Outgoi
ng Inter-RAT
Inter-Cell
Handover
Commands
(service based
handover)
BSC6900
GBFD-114321
GSM/WCDMA
Service Based
Handover
1278083491
CELL.INTERR
AN.OUTCELL.
HO.FAIL.SER
VICE.BASED.
HO
H352M:Failed
Outgoing InterRAT Inter-Cell
Handovers
(service based
handover)
BSC6900
GBFD-114321
GSM/WCDMA
Service Based
Handover
1278083492
CELL.INTERR
AN.OUTCELL.
HO.REQ.DR.S
D
H3500A:Outgoi
ng Inter-RAT
Inter-Cell
Handover
Requests
(SDCCH)
(Directed Retry)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
CELL.INTERR
AN.OUTCELL.
HO.CMD.DR.S
D
H3510A:Outgoi
ng Inter-RAT
Inter-Cell
Handover
Commands
(SDCCH)
(Directed Retry)
BSC6900
CELL.INTERR
AN.OUTCELL.
HO.FAIL.DR.S
D
H3520A:Failed
Outgoing InterRAT Inter-Cell
Handovers
(SDCCH)
(Directed Retry)
BSC6900
1278083493
1278083494
Issue 04 (2013-04-12)
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-114301
GBFD-114302
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
150
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
12 Counters
Counter ID
Counter Name
Counter
Description
NE
Feature ID
Feature Name
1278699497
BSCRPT.INTE
RRAN.OUTCE
LL.HO.FAIL.T
8.EXP
ZH952C:Succes
sful
Reconnections
to Old Channels
upon Outgoing
Inter-RAT InterCell Handover
Failure per BSC
(T8 Time Out)
BSC6900
GBFD-114301
GSM/WCDMA
Interoperability
BSCRPT.INTE
RRAN.OUTCE
LL.HO.FAIL.R
ECONN.SUCC
ZCH952D:Succ
essful
Reconnections
to Old Channels
upon Outgoing
Inter-RAT InterCell Handover
Failure per BSC
BSC6900
NC.CELL.RES
ELECT.ATMP
T
H9010:Number
of NetworkControlled Cell
Reselection
Attempts
BSC6900
1278699498
1279172426
GBFD-114302
GBFD-114301
GBFD-114302
GBFD-116201
GBFD-511405
GBFD-114301
GBFD-511307
GSM/TDSCDMA
Interoperability
GSM/WCDMA
Interoperability
GSM/TDSCDMA
Interoperability
NetworkControlled Cell
Reselection
(NC2)
NC2 between
GSM and TDSCDMA
GSM/WCDMA
Interoperability
eNC2 Between
GSM and LTE
Issue 04 (2013-04-12)
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Copyright © Huawei Technologies Co., Ltd.
151
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
13 Glossary
13
Glossary
For the acronyms, abbreviations, terms, and definitions, see the Glossary.
Issue 04 (2013-04-12)
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Copyright © Huawei Technologies Co., Ltd.
152
GSM BSS
Interoperability Between GSM and WCDMA Feature
Parameter Description
14
14 Reference Documents
Reference Documents
1.
3GPP TS 45.008 Radio subsystem link control
2.
3GPP TS 44.018 Mobile radio interface layer 3 specification; Radio Resource Control
(RRC) protocol
3.
3GPP TS 48.008 Mobile Switching Centre - Base Station system (MSC-BSS) interface;
Layer 3 specification
4.
BSC6900 Feature List
5.
BSC6900 Optional Feature Description
6.
BSC6900 GSM Parameter Reference
7.
BSC6900 GSM MML Command Reference
8.
Handover Feature Parameter Description
Issue 04 (2013-04-12)
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Copyright © Huawei Technologies Co., Ltd.
153